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2013-11-29rt2x00: fix HT TX descriptor settings regressionStanislaw Gruszka
commit 3d8bfe141be8e5c21261fc63da8e7964d44f2645 upstream. Since: commit 36323f817af0376c78612cfdab714b0feb05fea5 Author: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Date: Mon Jul 23 21:33:42 2012 +0200 mac80211: move TX station pointer and restructure TX we do not pass sta pointer to rt2x00queue_create_tx_descriptor_ht(), hence we do not correctly set station WCID and AMPDU density parameters. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29rt2x00: rt2800lib: fix VGC adjustment for RT5592Gabor Juhos
commit 0beb1bbf19c72f17809e42b8f33522a55c2cc18c upstream. In commit 3d81535ea5940446510a8a5cee1c6ad23c90c753 (rt2800: 5592: add chip specific vgc calculations) the rt2800_link_tuner function has been modified to adjust VGC level for the RT5592 chipset. On the RT5592 chipset, the VGC level must be adjusted only if rssi is greater than -65. However the current code adjusts the VGC value by 0x10 regardless of the actual chipset if the rssi value is between -80 and -65. Fix the broken behaviour by reordering the if-else statements. Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29rt2x00: check if device is still available on rt2x00mac_flush()Stanislaw Gruszka
commit 5671ab05cf2a579218985ef56595387932d78ee4 upstream. Fix random kernel panic with below messages when remove dongle. [ 2212.355447] BUG: unable to handle kernel NULL pointer dereference at 0000000000000250 [ 2212.355527] IP: [<ffffffffa02667f2>] rt2x00usb_kick_tx_entry+0x12/0x160 [rt2x00usb] [ 2212.355599] PGD 0 [ 2212.355626] Oops: 0000 [#1] SMP [ 2212.355664] Modules linked in: rt2800usb rt2x00usb rt2800lib crc_ccitt rt2x00lib mac80211 cfg80211 tun arc4 fuse rfcomm bnep snd_hda_codec_realtek snd_hda_intel snd_hda_codec btusb uvcvideo bluetooth snd_hwdep x86_pkg_temp_thermal snd_seq coretemp aesni_intel aes_x86_64 snd_seq_device glue_helper snd_pcm ablk_helper videobuf2_vmalloc sdhci_pci videobuf2_memops videobuf2_core sdhci videodev mmc_core serio_raw snd_page_alloc microcode i2c_i801 snd_timer hid_multitouch thinkpad_acpi lpc_ich mfd_core snd tpm_tis wmi tpm tpm_bios soundcore acpi_cpufreq i915 i2c_algo_bit drm_kms_helper drm i2c_core video [last unloaded: cfg80211] [ 2212.356224] CPU: 0 PID: 34 Comm: khubd Not tainted 3.12.0-rc3-wl+ #3 [ 2212.356268] Hardware name: LENOVO 3444CUU/3444CUU, BIOS G6ET93WW (2.53 ) 02/04/2013 [ 2212.356319] task: ffff880212f687c0 ti: ffff880212f66000 task.ti: ffff880212f66000 [ 2212.356392] RIP: 0010:[<ffffffffa02667f2>] [<ffffffffa02667f2>] rt2x00usb_kick_tx_entry+0x12/0x160 [rt2x00usb] [ 2212.356481] RSP: 0018:ffff880212f67750 EFLAGS: 00010202 [ 2212.356519] RAX: 000000000000000c RBX: 000000000000000c RCX: 0000000000000293 [ 2212.356568] RDX: ffff8801f4dc219a RSI: 0000000000000000 RDI: 0000000000000240 [ 2212.356617] RBP: ffff880212f67778 R08: ffffffffa02667e0 R09: 0000000000000002 [ 2212.356665] R10: 0001f95254ab4b40 R11: ffff880212f675be R12: ffff8801f4dc2150 [ 2212.356712] R13: 0000000000000000 R14: ffffffffa02667e0 R15: 000000000000000d [ 2212.356761] FS: 0000000000000000(0000) GS:ffff88021e200000(0000) knlGS:0000000000000000 [ 2212.356813] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2212.356852] CR2: 0000000000000250 CR3: 0000000001a0c000 CR4: 00000000001407f0 [ 2212.356899] Stack: [ 2212.356917] 000000000000000c ffff8801f4dc2150 0000000000000000 ffffffffa02667e0 [ 2212.356980] 000000000000000d ffff880212f677b8 ffffffffa03a31ad ffff8801f4dc219a [ 2212.357038] ffff8801f4dc2150 0000000000000000 ffff8800b93217a0 ffff8801f49bc800 [ 2212.357099] Call Trace: [ 2212.357122] [<ffffffffa02667e0>] ? rt2x00usb_interrupt_txdone+0x90/0x90 [rt2x00usb] [ 2212.357174] [<ffffffffa03a31ad>] rt2x00queue_for_each_entry+0xed/0x170 [rt2x00lib] [ 2212.357244] [<ffffffffa026701c>] rt2x00usb_kick_queue+0x5c/0x60 [rt2x00usb] [ 2212.357314] [<ffffffffa03a3682>] rt2x00queue_flush_queue+0x62/0xa0 [rt2x00lib] [ 2212.357386] [<ffffffffa03a2930>] rt2x00mac_flush+0x30/0x70 [rt2x00lib] [ 2212.357470] [<ffffffffa04edded>] ieee80211_flush_queues+0xbd/0x140 [mac80211] [ 2212.357555] [<ffffffffa0502e52>] ieee80211_set_disassoc+0x2d2/0x3d0 [mac80211] [ 2212.357645] [<ffffffffa0506da3>] ieee80211_mgd_deauth+0x1d3/0x240 [mac80211] [ 2212.357718] [<ffffffff8108b17c>] ? try_to_wake_up+0xec/0x290 [ 2212.357788] [<ffffffffa04dbd18>] ieee80211_deauth+0x18/0x20 [mac80211] [ 2212.357872] [<ffffffffa0418ddc>] cfg80211_mlme_deauth+0x9c/0x140 [cfg80211] [ 2212.357913] [<ffffffffa041907c>] cfg80211_mlme_down+0x5c/0x60 [cfg80211] [ 2212.357962] [<ffffffffa041cd18>] cfg80211_disconnect+0x188/0x1a0 [cfg80211] [ 2212.358014] [<ffffffffa04013bc>] ? __cfg80211_stop_sched_scan+0x1c/0x130 [cfg80211] [ 2212.358067] [<ffffffffa03f8954>] cfg80211_leave+0xc4/0xe0 [cfg80211] [ 2212.358124] [<ffffffffa03f8d1b>] cfg80211_netdev_notifier_call+0x3ab/0x5e0 [cfg80211] [ 2212.358177] [<ffffffff815140f8>] ? inetdev_event+0x38/0x510 [ 2212.358217] [<ffffffff81085a94>] ? __wake_up+0x44/0x50 [ 2212.358254] [<ffffffff8155995c>] notifier_call_chain+0x4c/0x70 [ 2212.358293] [<ffffffff81081156>] raw_notifier_call_chain+0x16/0x20 [ 2212.358361] [<ffffffff814b6dd5>] call_netdevice_notifiers_info+0x35/0x60 [ 2212.358429] [<ffffffff814b6ec9>] __dev_close_many+0x49/0xd0 [ 2212.358487] [<ffffffff814b7028>] dev_close_many+0x88/0x100 [ 2212.358546] [<ffffffff814b8150>] rollback_registered_many+0xb0/0x220 [ 2212.358612] [<ffffffff814b8319>] unregister_netdevice_many+0x19/0x60 [ 2212.358694] [<ffffffffa04d8eb2>] ieee80211_remove_interfaces+0x112/0x190 [mac80211] [ 2212.358791] [<ffffffffa04c585f>] ieee80211_unregister_hw+0x4f/0x100 [mac80211] [ 2212.361994] [<ffffffffa03a1221>] rt2x00lib_remove_dev+0x161/0x1a0 [rt2x00lib] [ 2212.365240] [<ffffffffa0266e2e>] rt2x00usb_disconnect+0x2e/0x70 [rt2x00usb] [ 2212.368470] [<ffffffff81419ce4>] usb_unbind_interface+0x64/0x1c0 [ 2212.371734] [<ffffffff813b446f>] __device_release_driver+0x7f/0xf0 [ 2212.374999] [<ffffffff813b4503>] device_release_driver+0x23/0x30 [ 2212.378131] [<ffffffff813b3c98>] bus_remove_device+0x108/0x180 [ 2212.381358] [<ffffffff813b0565>] device_del+0x135/0x1d0 [ 2212.384454] [<ffffffff81417760>] usb_disable_device+0xb0/0x270 [ 2212.387451] [<ffffffff8140d9cd>] usb_disconnect+0xad/0x1d0 [ 2212.390294] [<ffffffff8140f6cd>] hub_thread+0x63d/0x1660 [ 2212.393034] [<ffffffff8107c860>] ? wake_up_atomic_t+0x30/0x30 [ 2212.395728] [<ffffffff8140f090>] ? hub_port_debounce+0x130/0x130 [ 2212.398412] [<ffffffff8107baa0>] kthread+0xc0/0xd0 [ 2212.401058] [<ffffffff8107b9e0>] ? insert_kthread_work+0x40/0x40 [ 2212.403639] [<ffffffff8155de3c>] ret_from_fork+0x7c/0xb0 [ 2212.406193] [<ffffffff8107b9e0>] ? insert_kthread_work+0x40/0x40 [ 2212.408732] Code: 24 58 08 00 00 bf 80 00 00 00 e8 3a c3 e0 e0 5b 41 5c 5d c3 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 <48> 8b 47 10 48 89 fb 4c 8b 6f 28 4c 8b 20 49 8b 04 24 4c 8b 30 [ 2212.414671] RIP [<ffffffffa02667f2>] rt2x00usb_kick_tx_entry+0x12/0x160 [rt2x00usb] [ 2212.417646] RSP <ffff880212f67750> [ 2212.420547] CR2: 0000000000000250 [ 2212.441024] ---[ end trace 5442918f33832bce ]--- Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Acked-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29rt2x00: fix a crash bug in the HT descriptor handling fixFelix Fietkau
commit b4089d6d8e71a7293e2192025dfa507a04f661c4 upstream. Commit "rt2x00: fix HT TX descriptor settings regression" assumes that the control parameter to rt2x00mac_tx is always non-NULL. There is an internal call in rt2x00lib_bc_buffer_iter where NULL is passed. Fix the resulting crash by adding an initialized dummy on-stack ieee80211_tx_control struct. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29ACPI / hotplug: Do not execute "insert in progress" _OSTRafael J. Wysocki
commit 176a88d79d6b5aebabaff16734e8b3107efcaaad upstream. According to the ACPI spec (5.0, Section 6.3.5), the "Device insertion in progress (pending)" (0x80) _OST status code is reserved for the "Insertion Processing" (0x200) source event which is "a result of an OSPM action". Specifically, it is not a notification, so that status code should not be used during notification processing, which unfortunately is done by acpi_scan_bus_device_check(). For this reason, drop the ACPI_OST_SC_INSERT_IN_PROGRESS _OST status evaluation from there (it was a mistake to put it in there in the first place). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29ACPI / hotplug: Fix handle_root_bridge_removal()Rafael J. Wysocki
commit 2441191a19039002b2c454a261fb45986df15184 upstream. It is required to do get_device() on the struct acpi_device in question before passing it to acpi_bus_hot_remove_device() through acpi_os_hotplug_execute(), because acpi_bus_hot_remove_device() calls acpi_scan_hot_remove() that does put_device() on that object. The ACPI PCI root removal routine, handle_root_bridge_removal(), doesn't do that, which may lead to premature freeing of the device object or to executing put_device() on an object that has been freed already. Fix this problem by making handle_root_bridge_removal() use get_device() as appropriate. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Toshi Kani <toshi.kani@hp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29ACPI / video: Quirk initial backlight level 0Aaron Lu
commit 2c62333a408f5badd2d2ffd7177f95deeccc5ca4 upstream. Some firmware doesn't initialize initial backlight level to a proper value and _BQC will return 0 on first time evaluation. We used to be able to detect such incorrect value with our code logic, as value 0 normally isn't a valid value in _BCL. But with the introduction of Win8, firmware begins to fill _BCL with values from 0 to 100, now 0 becomes a valid value but that value will make user's screen black. This patch test initial _BQC for value 0, if such a value is returned, do not use it. References: https://bugzilla.kernel.org/show_bug.cgi?id=64031 References: https://bugzilla.kernel.org/show_bug.cgi?id=61231 References: https://bugzilla.kernel.org/show_bug.cgi?id=63111 Reported-by: Qingshuai Tian <qingshuai.tian@intel.com> Tested-by: Aaron Lu <aaron.lu@intel.com> # on "Idealpad u330p" Reported-and-tested-by: <erno@iki.fi> # on "Acer Aspire V5-573G" Reported-and-tested-by: Kirill Tkhai <tkhai@yandex.ru> # on "HP 250 G1" Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29ACPI / EC: Ensure lock is acquired before accessing ec struct membersPuneet Kumar
commit 36b15875a7819a2ec4cb5748ff7096ad7bd86cbb upstream. A bug was introduced by commit b76b51ba0cef ('ACPI / EC: Add more debug info and trivial code cleanup') that erroneously caused the struct member to be accessed before acquiring the required lock. This change fixes it by ensuring the lock acquisition is done first. Found by Aaron Durbin <adurbin@chromium.org> Fixes: b76b51ba0cef ('ACPI / EC: Add more debug info and trivial code cleanup') References: http://crbug.com/319019 Signed-off-by: Puneet Kumar <puneetster@chromium.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> [olof: Commit message reworded a bit] Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29PCI: Support PCIe Capability Slot registers only for ports with slotsBjorn Helgaas
commit 6d3a1741f1e648cfbd5a0cc94477a0d5004c6f5e upstream. Previously we allowed callers to access Slot Capabilities, Status, and Control for Root Ports even if the Root Port did not implement a slot. This seems dubious because the spec only requires these registers if a slot is implemented. It's true that even Root Ports without slots must have *space* for these slot registers, because the Root Capabilities, Status, and Control registers are after the slot registers in the capability. However, for a v1 PCIe Capability, the *semantics* of the slot registers are undefined unless a slot is implemented. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-By: Jiang Liu <jiang.liu@huawei.com> Acked-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29PCI: Remove PCIe Capability version checksBjorn Helgaas
commit c8b303d0206b28c4ff3aecada47108d1655ae00f upstream. Previously we relied on the PCIe r3.0, sec 7.8, spec language that says "For Functions that do not implement the [Link, Slot, Root] registers, these spaces must be hardwired to 0b," which means that for v2 PCIe capabilities, we don't need to check the device type at all. But it's simpler if we don't need to check the capability version at all, and I think the spec is explicit enough about which registers are required for which types that we can remove the version checks. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-By: Jiang Liu <jiang.liu@huawei.com> Acked-by: Myron Stowe <myron.stowe@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29PCI: Allow PCIe Capability link-related register access for switchesBjorn Helgaas
commit d3694d4fa3f44f6a295f8ab064937c8a1549d174 upstream. Every PCIe device has a link, except Root Complex Integrated Endpoints and Root Complex Event Collectors. Previously we didn't give access to PCIe capability link-related registers for Upstream Ports, Downstream Ports, and Bridges, so attempts to read PCI_EXP_LNKCTL incorrectly returned zero. See PCIe spec r3.0, sec 7.8 and 1.3.2.3. Reference: http://lkml.kernel.org/r/979A8436335E3744ADCD3A9F2A2B68A52AD136BE@SJEXCHMB10.corp.ad.broadcom.com Reported-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-By: Jiang Liu <jiang.liu@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29sched, idle: Fix the idle polling state logicPeter Zijlstra
commit ea8117478918a4734586d35ff530721b682425be upstream. Mike reported that commit 7d1a9417 ("x86: Use generic idle loop") regressed several workloads and caused excessive reschedule interrupts. The patch in question failed to notice that the x86 code had an inverted sense of the polling state versus the new generic code (x86: default polling, generic: default !polling). Fix the two prominent x86 mwait based idle drivers and introduce a few new generic polling helpers (fixing the wrong smp_mb__after_clear_bit usage). Also switch the idle routines to using tif_need_resched() which is an immediate TIF_NEED_RESCHED test as opposed to need_resched which will end up being slightly different. Reported-by: Mike Galbraith <bitbucket@online.de> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Cc: lenb@kernel.org Cc: tglx@linutronix.de Link: http://lkml.kernel.org/n/tip-nc03imb0etuefmzybzj7sprf@git.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29drm/nva3-/disp: fix hda eld writing, needs to be paddedIlia Mirkin
commit 02d69294a174d7cb6a76080b6d16971ca08728d4 upstream. Commits 0a9e2b959 (drm/nvd0/disp: move HDA codec setup to core) and a4feaf4ea (drm/nva3/disp: move hda codec handling to core) moved code around but neglected to fill data up to 0x60 as before. This caused /proc/asound/cardN/eld#3.0 to show eld_valid as 0. With this patch, that file is again populated with the correct data. See https://bugs.freedesktop.org/show_bug.cgi?id=67051 Reported-and-tested-by: Alex <alupu01@gmail.com> Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29drm/nv50-/disp: remove dcb_outp_match call, and related variablesEmil Velikov
commit 9a7046d55f319b2dde5d2536cc2adb01ebdbe09e upstream. Unused and irrelavant since the code move of DP training/linkcontrol interrupt Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29can: c_can: Fix RX message handling, handle lost message before EOBMarkus Pargmann
commit 5d0f801a2ccec3b1fdabc3392c8d99ed0413d216 upstream. If we handle end of block messages with higher priority than a lost message, we can run into an endless interrupt loop. This is reproducable with a am335x processor and "cansequence -r" at 1Mbit. As soon as we loose a packet we can't escape from an interrupt loop. This patch fixes the problem by handling lost packets before EOB packets. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29can: kvaser_usb: fix usb endpoints detectionOlivier Sobrie
commit 896e23bd04ea50a146dffd342e2f96180f0812a5 upstream. Some devices, like the Kvaser Memorator Professional, have several bulk in endpoints. Only the first one found must be used by the driver. The same holds for the bulk out endpoint. The official Kvaser driver (leaf) was used as reference for this patch. Signed-off-by: Olivier Sobrie <olivier@sobrie.be> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29USB: mos7840: fix tiocmget error handlingJohan Hovold
commit a91ccd26e75235d86248d018fe3779732bcafd8d upstream. Make sure to return errors from tiocmget rather than rely on uninitialised stack data. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29ACPICA: Fix for a Store->ArgX when ArgX contains a reference to a field.Bob Moore
commit 4be4be8fee2ee99a52f94f90d03d2f287ee1db86 upstream. This change fixes a problem where a Store operation to an ArgX object that contained a reference to a field object did not complete the automatic dereference and then write to the actual field object. Instead, the object type of the field object was inadvertently changed to match the type of the source operand. The new behavior will actually write to the field object (buffer field or field unit), thus matching the correct ACPI-defined behavior. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29ACPICA: Return error if DerefOf resolves to a null package element.Bob Moore
commit a50abf4842dd7d603a2ad6dcc7f1467fd2a66f03 upstream. Disallow the dereference of a reference (via index) to an uninitialized package element. Provides compatibility with other ACPI implementations. ACPICA BZ 1003. References: https://bugs.acpica.org/show_bug.cgi?id=431 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29aacraid: prevent invalid pointer dereferenceMahesh Rajashekhara
commit b4789b8e6be3151a955ade74872822f30e8cd914 upstream. It appears that driver runs into a problem here if fibsize is too small because we allocate user_srbcmd with fibsize size only but later we access it until user_srbcmd->sg.count to copy it over to srbcmd. It is not correct to test (fibsize < sizeof(*user_srbcmd)) because this structure already includes one sg element and this is not needed for commands without data. So, we would recommend to add the following (instead of test for fibsize == 0). Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com> Reported-by: Nico Golde <nico@ngolde.de> Reported-by: Fabian Yamaguchi <fabs@goesec.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29libertas: potential oops in debugfsDan Carpenter
commit a497e47d4aec37aaf8f13509f3ef3d1f6a717d88 upstream. If we do a zero size allocation then it will oops. Also we can't be sure the user passes us a NUL terminated string so I've added a terminator. This code can only be triggered by root. Reported-by: Nico Golde <nico@ngolde.de> Reported-by: Fabian Yamaguchi <fabs@goesec.de> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-29ACPICA: DeRefOf operator: Update to fully resolve FieldUnit and BufferField ↵Bob Moore
refs. commit 63660e05ec719613b518547b40a1c501c10f0bc4 upstream. Previously, references to these objects were resolved only to the actual FieldUnit or BufferField object. The correct behavior is to resolve these references to an actual value. The problem is that DerefOf did not resolve these objects to actual values. An "Integer" object is simple, return the value. But a field in an operation region will require a read operation. For a BufferField, the appropriate data must be extracted from the parent buffer. NOTE: It appears that this issues is present in Windows7 but not Windows8. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20media: sh_vou: almost forever loop in sh_vou_try_fmt_vid_out()Dan Carpenter
commit 47c32ec9392a1fc7dec9d7cfde084e1432fcee82 upstream. The "i < " part of the "i < ARRAY_SIZE()" condition was missing. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> [g.liakhovetski@gmx.de: remove unrelated superfluous braces] Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20usbcore: set lpm_capable field for LPM capable root hubsXenia Ragiadakou
commit 9df89d85b407690afa46ddfbccc80bec6869971d upstream. This patch sets the lpm_capable field for root hubs with LPM capabilities. Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Reported-by: Martin MOKREJS <mmokrejs@gmail.com> Suggested-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20usb: fail on usb_hub_create_port_device() errorsKrzysztof Mazur
commit e58547eb9561a8a72d46e2d411090a614d33ac0e upstream. Ignoring usb_hub_create_port_device() errors cause later NULL pointer deference when uninitialized hub->ports[i] entries are dereferenced after port memory allocation error. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20usb: fix cleanup after failure in hub_configure()Krzysztof Mazur
commit d0308d4b6b02597f39fc31a9bddf7bb3faad5622 upstream. If the hub_configure() fails after setting the hdev->maxchild the hub->ports might be NULL or point to uninitialized kzallocated memory causing NULL pointer dereference in hub_quiesce() during cleanup. Now after such error the hdev->maxchild is set to 0 to avoid cleanup of uninitialized ports. Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20backlight: atmel-pwm-bl: fix deferred probe from __initJohan Hovold
commit 9d3fde86b15303decea632c929fbf1f3ae4501f2 upstream. Move probe out of __init section and don't use platform_driver_probe which cannot be used with deferred probing. Since commit e9354576 ("gpiolib: Defer failed gpio requests by default") this driver might return -EPROBE_DEFER if a gpio_request fails. Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Jingoo Han <jg1.han@samsung.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20misc: atmel_pwm: add deferred-probing supportJohan Hovold
commit 5c6d6fd1564138ad048564e48639f842714a90c6 upstream. Two drivers (atmel-pwm-bl and leds-atmel-pwm) currently depend on the atmel_pwm driver to have bound to any pwm-device before their devices are probed. Support deferred probing of such devices by making sure to return -EPROBE_DEFER from pwm_channel_alloc when no pwm-device has yet been bound. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20iwlwifi: pcie: add new SKUs for 7000 & 3160 NIC seriesMatti Gottlieb
commit b49926629fb5c324bb1ed3960fb0d7905a4a8562 upstream. Add some new PCI IDs to the table for 7000 & 3160 series Signed-off-by: Matti Gottlieb <matti.gottlieb@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20iwlwifi: add new 7260 and 3160 series device IDsOren Givon
commit 93fc64114b994f9ef6901697f9b0de00762680e9 upstream. Add new device IDs and configurations to support all the devices. Signed-off-by: Oren Givon <oren.givon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20USB: add new zte 3g-dongle's pid to option.cRui li
commit 0636fc507a976cdc40f21bdbcce6f0b98ff1dfe9 upstream. Signed-off-by: Rui li <li.rui27@zte.com.cn> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20hyperv-fb: add pci stubGerd Hoffmann
commit 7ad9684721606efbfb9b347346816e1e6baff8bb upstream. This patch adds a pci stub driver to hyper-fb. The hyperv framebuffer driver will bind to the pci device then, so linux kernel and userspace know there is a proper kernel driver for the device active. lspci shows this for example: [root@dhcp231 ~]# lspci -vs8 00:08.0 VGA compatible controller: Microsoft Corporation Hyper-V virtual VGA (prog-if 00 [VGA controller]) Flags: bus master, fast devsel, latency 0, IRQ 11 Memory at f8000000 (32-bit, non-prefetchable) [size=64M] Expansion ROM at <unassigned> [disabled] Kernel driver in use: hyperv_fb Another effect is that the xorg vesa driver will not attach to the device and thus the Xorg server will automatically use the fbdev driver instead. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20xen-netback: transition to CLOSED when removing a VIFDavid Vrabel
[ Upstream commit dc62ccaccfb139d9b04bbc5a2688a4402adbfab3 ] If a guest is destroyed without transitioning its frontend to CLOSED, the domain becomes a zombie as netback was not grant unmapping the shared rings. When removing a VIF, transition the backend to CLOSED so the VIF is disconnected if necessary (which will unmap the shared rings etc). This fixes a regression introduced by 279f438e36c0a70b23b86d2090aeec50155034a9 (xen-netback: Don't destroy the netdev until the vif is shut down). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Paul Durrant <Paul.Durrant@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com> Reviewed-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20xen-netback: Handle backend state transitions in a more robust wayPaul Durrant
[ Upstream commit ea732dff5cfa10789007bf4a5b935388a0bb2a8f ] When the frontend state changes netback now specifies its desired state to a new function, set_backend_state(), which transitions through any necessary intermediate states. This fixes an issue observed with some old Windows frontend drivers where they failed to transition through the Closing state and netback would not behave correctly. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20net/mlx4_core: Fix call to __mlx4_unregister_macJack Morgenstein
[ Upstream commit c32b7dfbb1dfb3f0a68f250deff65103c8bb704a ] In function mlx4_master_deactivate_admin_state() __mlx4_unregister_mac was called using the MAC index. It should be called with the value of the MAC itself. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20virtio-net: correctly handle cpu hotplug notifier during resumingJason Wang
[ Upstream commit ec9debbd9a88d8ea86c488d6ffcac419ee7d46d9 ] commit 3ab098df35f8b98b6553edc2e40234af512ba877 (virtio-net: don't respond to cpu hotplug notifier if we're not ready) tries to bypass the cpu hotplug notifier by checking the config_enable and does nothing is it was false. So it need to try to hold the config_lock mutex which may happen in atomic environment which leads the following warnings: [ 622.944441] CPU0 attaching NULL sched-domain. [ 622.944446] CPU1 attaching NULL sched-domain. [ 622.944485] CPU0 attaching NULL sched-domain. [ 622.950795] BUG: sleeping function called from invalid context at kernel/mutex.c:616 [ 622.950796] in_atomic(): 1, irqs_disabled(): 1, pid: 10, name: migration/1 [ 622.950796] no locks held by migration/1/10. [ 622.950798] CPU: 1 PID: 10 Comm: migration/1 Not tainted 3.12.0-rc5-wl-01249-gb91e82d #317 [ 622.950799] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 622.950802] 0000000000000000 ffff88001d42dba0 ffffffff81a32f22 ffff88001bfb9c70 [ 622.950803] ffff88001d42dbb0 ffffffff810edb02 ffff88001d42dc38 ffffffff81a396ed [ 622.950805] 0000000000000046 ffff88001d42dbe8 ffffffff810e861d 0000000000000000 [ 622.950805] Call Trace: [ 622.950810] [<ffffffff81a32f22>] dump_stack+0x54/0x74 [ 622.950815] [<ffffffff810edb02>] __might_sleep+0x112/0x114 [ 622.950817] [<ffffffff81a396ed>] mutex_lock_nested+0x3c/0x3c6 [ 622.950818] [<ffffffff810e861d>] ? up+0x39/0x3e [ 622.950821] [<ffffffff8153ea7c>] ? acpi_os_signal_semaphore+0x21/0x2d [ 622.950824] [<ffffffff81565ed1>] ? acpi_ut_release_mutex+0x5e/0x62 [ 622.950828] [<ffffffff816d04ec>] virtnet_cpu_callback+0x33/0x87 [ 622.950830] [<ffffffff81a42576>] notifier_call_chain+0x3c/0x5e [ 622.950832] [<ffffffff810e86a8>] __raw_notifier_call_chain+0xe/0x10 [ 622.950835] [<ffffffff810c5556>] __cpu_notify+0x20/0x37 [ 622.950836] [<ffffffff810c5580>] cpu_notify+0x13/0x15 [ 622.950838] [<ffffffff81a237cd>] take_cpu_down+0x27/0x3a [ 622.950841] [<ffffffff81136289>] stop_machine_cpu_stop+0x93/0xf1 [ 622.950842] [<ffffffff81136167>] cpu_stopper_thread+0xa0/0x12f [ 622.950844] [<ffffffff811361f6>] ? cpu_stopper_thread+0x12f/0x12f [ 622.950847] [<ffffffff81119710>] ? lock_release_holdtime.part.7+0xa3/0xa8 [ 622.950848] [<ffffffff81135e4b>] ? cpu_stop_should_run+0x3f/0x47 [ 622.950850] [<ffffffff810ea9b0>] smpboot_thread_fn+0x1c5/0x1e3 [ 622.950852] [<ffffffff810ea7eb>] ? lg_global_unlock+0x67/0x67 [ 622.950854] [<ffffffff810e36b7>] kthread+0xd8/0xe0 [ 622.950857] [<ffffffff81a3bfad>] ? wait_for_common+0x12f/0x164 [ 622.950859] [<ffffffff810e35df>] ? kthread_create_on_node+0x124/0x124 [ 622.950861] [<ffffffff81a45ffc>] ret_from_fork+0x7c/0xb0 [ 622.950862] [<ffffffff810e35df>] ? kthread_create_on_node+0x124/0x124 [ 622.950876] smpboot: CPU 1 is now offline [ 623.194556] SMP alternatives: lockdep: fixing up alternatives [ 623.194559] smpboot: Booting Node 0 Processor 1 APIC 0x1 ... A correct fix is to unregister the hotcpu notifier during restore and register a new one in resume. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Tested-by: Fengguang Wu <fengguang.wu@intel.com> Cc: Wanlong Gao <gaowanlong@cn.fujitsu.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20xen-netback: use jiffies_64 value to calculate credit timeoutWei Liu
[ Upstream commit 059dfa6a93b779516321e5112db9d7621b1367ba ] time_after_eq() only works if the delta is < MAX_ULONG/2. For a 32bit Dom0, if netfront sends packets at a very low rate, the time between subsequent calls to tx_credit_exceeded() may exceed MAX_ULONG/2 and the test for timer_after_eq() will be incorrect. Credit will not be replenished and the guest may become unable to send packets (e.g., if prior to the long gap, all credit was exhausted). Use jiffies_64 variant to mitigate this problem for 32bit Dom0. Suggested-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Wei Liu <wei.liu2@citrix.com> Reviewed-by: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Jason Luan <jianhai.luan@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-20cxgb3: Fix length calculation in write_ofld_wr() on 32-bit architecturesBen Hutchings
[ Upstream commit 262e827fe745642589450ae241b7afd3912c3f25 ] The length calculation here is now invalid on 32-bit architectures, since sk_buff::tail is a pointer and sk_buff::transport_header is an integer offset: drivers/net/ethernet/chelsio/cxgb3/sge.c: In function 'write_ofld_wr': drivers/net/ethernet/chelsio/cxgb3/sge.c:1603:9: warning: passing argument 4 of 'make_sgl' makes integer from pointer without a cast [enabled by default] adap->pdev); ^ drivers/net/ethernet/chelsio/cxgb3/sge.c:964:28: note: expected 'unsigned int' but argument is of type 'sk_buff_data_t' static inline unsigned int make_sgl(const struct sk_buff *skb, ^ Use the appropriate skb accessor functions. Compile-tested only. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Fixes: 1a37e412a022 ('net: Use 16bits for *_headers fields of struct skbuff') Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13NTB: Correct debugfs to work with more than 1 NTB DeviceJon Mason
commit 1517a3f21a1dd321f16bcf44204bddff9d21abd0 upstream. Debugfs was setup in NTB to only have a single debugfs directory. This resulted in the leaking of debugfs directories and files when multiple NTB devices were present, due to each device stomping on the variables containing the previous device's values (thus preventing them from being freed on cleanup). Correct this by creating a secondary directory of the PCI BDF for each device present, and nesting the previously existing information in those directories. Signed-off-by: Jon Mason <jon.mason@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13NTB: Correct USD/DSD IdentificationJon Mason
commit b6750cfe0710a14fd147ba27fddbecae8ba88c77 upstream. Due to ambiguous documentation, the USD/DSD identification is backward when compared to the setting in BIOS. Correct the bits to match the BIOS setting. Signed-off-by: Jon Mason <jon.mason@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13NTB: Correct Number of Scratch Pad RegistersJon Mason
commit 87034511519815259e37336f52edf06d114d43b6 upstream. The NTB Xeon hardware has 16 scratch pad registers and 16 back-to-back scratch pad registers. Correct the #define to represent this and update the variable names to reflect their usage. Signed-off-by: Jon Mason <jon.mason@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13NTB: Add Error Handling in ntb_device_setupJon Mason
commit 3b12a0d15bd1559e72ad21d9d807fd2a6706f0ab upstream. If an error is encountered in ntb_device_setup, it is possible that the spci_cmd isn't populated. Writes to the offset can result in a NULL pointer dereference. This issue is easily encountered by running in NTB-RP mode, as it currently is not supported and will generate an error. To get around this issue, return if an error is encountered prior to attempting to write to the spci_cmd offset. Signed-off-by: Jon Mason <jon.mason@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13drm/radeon/atom: workaround vbios bug in transmitter table on rs780Alex Deucher
commit c23632d4e57c0dd20bf50eca08fa0eb8ad3ff680 upstream. Some rs780 asics seem to be affected as well. See: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=91f3a6aaf280294b07c05dfe606e6c27b7ba3c72 Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=60791 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13drm: Prevent overwriting from userspace underallocating core ioctl structsChris Wilson
commit b062672e305ce071f21eb9e18b102c2a430e0999 upstream. Apply the protections from commit 1b2f1489633888d4a06028315dc19d65768a1c05 Author: Dave Airlie <airlied@redhat.com> Date: Sat Aug 14 20:20:34 2010 +1000 drm: block userspace under allocating buffer and having drivers overwrite it (v2) to the core ioctl structs as well, for we found one instance where there is a 32-/64-bit size mismatch and were guilty of writing beyond the end of the user's buffer. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Airlie <airlied@redhat.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13drm/vmwgfx: Don't kill clients on VT switchThomas Hellstrom
commit c4249855ac5b2a383704d31e040d3831d6a25c6f upstream. DRI clients that tried to grab the TTM lock when the master (X server) was switched away during a VT switch were sent the SIGTERM signal by the kernel. Fix this so that they are only sent that signal when the master has exited. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13drm/vmwgfx: Don't put resources with invalid id's on lru listThomas Hellstrom
commit 26682480c202e7360cbcdc3bc9e962bf749c6b8d upstream. The evict code may try to swap them out causing a BUG in the destroy function. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13clk: fixup argument order when setting VCO parametersJonathan Austin
commit 2f9f64bc5aa31836810cd25301aa4772ad73ebab upstream. The order of arguments in the call to vco_set() for the ICST clocks appears to have been switched in error, which results in the VCO not being initialised correctly. This in turn stops the integrated LCD on things like Integrator/CP from working correctly. This patch fixes the order and restores the expected functionality. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Austin <jonathan.austin@arm.com> Signed-off-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13aacraid: missing capable() check in compat ioctlDan Carpenter
commit f856567b930dfcdbc3323261bf77240ccdde01f5 upstream. In commit d496f94d22d1 ('[SCSI] aacraid: fix security weakness') we added a check on CAP_SYS_RAWIO to the ioctl. The compat ioctls need the check as well. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13Fix a few incorrectly checked [io_]remap_pfn_range() callsLinus Torvalds
commit 7314e613d5ff9f0934f7a0f74ed7973b903315d1 upstream. Nico Golde reports a few straggling uses of [io_]remap_pfn_range() that really should use the vm_iomap_memory() helper. This trivially converts two of them to the helper, and comments about why the third one really needs to continue to use remap_pfn_range(), and adds the missing size check. Reported-by: Nico Golde <nico@ngolde.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-13au1200fb: io_remap_pfn_range() sets VM_IOAl Viro
commit 1fca06fafb235a88c4fa91294aa1726c0e22855b upstream. ... and single return is quite sufficient to get out of function, TYVM Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-08-23 23:54:41 +0000