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2010-05-17LSM: Add __init to fixup function.Tetsuo Handa
register_security() became __init function. So do verify() and security_fixup_ops(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-17TOMOYO: Add pathname grouping support.Tetsuo Handa
This patch adds pathname grouping support, which is useful for grouping pathnames that cannot be represented using /\{dir\}/ pattern. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-17ima: remove ACPI dependencyMimi Zohar
The ACPI dependency moved to the TPM, where it belongs. Although IMA per-se does not require access to the bios measurement log, verifying the IMA boot aggregate does, which requires ACPI. This patch prereq's 'TPM: ACPI/PNP dependency removal' http://lkml.org/lkml/2010/5/4/378. Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Reported-by: Jean-Christophe Dubois <jcd@tribudubois.net> Acked-by: Serge Hallyn <serue@us.ibm.com> Tested-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-17TPM: ACPI/PNP dependency removalRajiv Andrade
This patch pushes the ACPI dependency into the device driver code itself. Now, even without ACPI/PNP enabled, the device can be registered using the TIS specified memory space. This will however result in the lack of access to the BIOS event log, being the only implication of such ACPI removal. Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-17security/selinux/ss: Use kstrdupJulia Lawall
Use kstrdup when the goal of an allocation is copy a string into the allocated region. The semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to; expression flag,E1,E2; statement S; @@ - to = kmalloc(strlen(from) + 1,flag); + to = kstrdup(from, flag); ... when != \(from = E1 \| to = E1 \) if (to==NULL || ...) S ... when != \(from = E2 \| to = E2 \) - strcpy(to, from); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Eric Paris <eparis@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-10TOMOYO: Use stack memory for pending entry.Tetsuo Handa
Use stack memory for pending entry to reduce kmalloc() which will be kfree()d. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-07Revert "ima: remove ACPI dependency"James Morris
This reverts commit a674fa46c79ffa37995bd1c8e4daa2b3be5a95ae. Previous revert was a prereq. Signed-off-by: James Morris <jmorris@namei.org>
2010-05-07Revert "TPM: ACPI/PNP dependency removal"James Morris
This reverts commit b89e66e1e396f7b5436af154e58209320cc08aed. > > When CONFIG_PM is not set: > > > > drivers/built-in.o: In function `acpi_init': > > bus.c:(.init.text+0x2d84): undefined reference to `pm_flags' > > bus.c:(.init.text+0x2d91): undefined reference to `pm_flags' > > CONFIG_ACPI depends on CONFIG_PM, > so acpi/bus.c should not be compiled for CONFIG_PM=n > > Hmm, is is somebody doing something strange, like "select ACPI" > without guaranteeing that all of ACPI's dependencies are satisfied? Signed-off-by: James Morris <jmorris@namei.org>
2010-05-06KEYS: Do preallocation for __key_link()David Howells
Do preallocation for __key_link() so that the various callers in request_key.c can deal with any errors from this source before attempting to construct a key. This allows them to assume that the actual linkage step is guaranteed to be successful. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-06Merge branch 'master' into nextJames Morris
Conflicts: security/keys/keyring.c Resolved conflict with whitespace fix in find_keyring_by_name() Signed-off-by: James Morris <jmorris@namei.org>
2010-05-06TOMOYO: Use mutex_lock_interruptible.Tetsuo Handa
Some of TOMOYO's functions may sleep after mutex_lock(). If OOM-killer selected a process which is waiting at mutex_lock(), the to-be-killed process can't be killed. Thus, replace mutex_lock() with mutex_lock_interruptible() so that the to-be-killed process can immediately return from TOMOYO's functions. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-06KEYS: Better handling of errors from construct_alloc_key()David Howells
Errors from construct_alloc_key() shouldn't just be ignored in the way they are by construct_key_and_link(). The only error that can be ignored so is EINPROGRESS as that is used to indicate that we've found a key and don't need to construct one. We don't, however, handle ENOMEM, EDQUOT or EACCES to indicate allocation failures of one sort or another. Reported-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-06KEYS: keyring_serialise_link_sem is only needed for keyring->keyring linksDavid Howells
keyring_serialise_link_sem is only needed for keyring->keyring links as it's used to prevent cycle detection from being avoided by parallel keyring additions. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-06Merge branch 'master' into nextJames Morris
2010-05-05Merge branch 'zerolen' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6 * 'zerolen' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6: [MTD] Remove zero-length files mtdbdi.c and internal.ho
2010-05-05Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: pata_pcmcia / ide-cs: Fix bad hashes for Transcend and kingston IDs libata: Fix several inaccuracies in developer's guide
2010-05-05[MTD] Remove zero-length files mtdbdi.c and internal.hoJeff Garzik
Both were "removed" in commit a33eb6b91034c95b9b08576f68be170f995b2c7d. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-05pata_pcmcia / ide-cs: Fix bad hashes for Transcend and kingston IDsKristoffer Ericson
This patch fixes the bad hashes for one Kingston and one Transcend card. Thanks to komuro for pointing this out. Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-05libata: Fix several inaccuracies in developer's guideSergei Shtylyov
Commit 6bfff31e77cfa1b13490337e5a4dbaa3407e83ac (libata: kill probe_ent and related helpers) killed ata_device_add() but didn't remove references to it from the libata developer's guide. Commits 9363c3825ea9ad76561eb48a395349dd29211ed6 (libata: rename SFF functions) and 5682ed33aae05d10a25c95633ef9d9c062825888 (libata: rename SFF port ops) renamed the taskfile access methods but didn't update the developer's guide. Commit c9f75b04ed5ed65a058d18a8a8dda50632a96de8 (libata: kill ata_noop_dev_select()) didn't update the developer's guide as well. The guide also refers to the long gone ata_pio_data_xfer_noirq(), ata_pio_data_xfer(), and ata_mmio_data_xfer() -- replace those by the modern ata_sff_data_xfer_noirq(), ata_sff_data_xfer(), and ata_sff_data_xfer32(). Also, remove the reference to non-existant ata_port_stop()... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2010-05-05Merge branch 'slab-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6 * 'slab-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: Fix bad boundary check in init_kmem_cache_nodes()
2010-05-05slub: Fix bad boundary check in init_kmem_cache_nodes()Zhang, Yanmin
Function init_kmem_cache_nodes is incorrect when checking upper limitation of kmalloc_caches. The breakage was introduced by commit 91efd773c74bb26b5409c85ad755d536448e229c ("dma kmalloc handling fixes"). Acked-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
2010-05-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: KEYS: call_sbin_request_key() must write lock keyrings before modifying them KEYS: Use RCU dereference wrappers in keyring key type code KEYS: find_keyring_by_name() can gain access to a freed keyring
2010-05-05Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: flush_delayed_work: keep the original workqueue for re-queueing
2010-05-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: FEC: Fix kernel panic in fec_set_mac_address. ipv6: Fix default multicast hops setting. net: ep93xx_eth stops receiving packets drivers/net/phy: micrel phy driver dm9601: fix phy/eeprom write routine ppp_generic: handle non-linear skbs when passing them to pppd ppp_generic: pull 2 bytes so that PPP_PROTO(skb) is valid net: fix compile error due to double return type in SOCK_DEBUG net/usb: initiate sync sequence in sierra_net.c driver net/usb: remove default in Kconfig for sierra_net driver r8169: Fix rtl8169_rx_interrupt() e1000e: Fix oops caused by ASPM patch. net/sb1250: register mdio bus in probe sctp: Fix skb_over_panic resulting from multiple invalid parameter errors (CVE-2010-1173) (v4) p54pci: fix bugs in p54p_check_tx_ring
2010-05-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda: Fix 0 dB for Packard Bell models using Conexant CX20549 (Venice) ALSA: hda - Add quirk for Dell Inspiron 19T using a Conexant CX20582 ALSA: take tu->qlock with irqs disabled ALSA: hda: Use olpc-xo-1_5 quirk for Toshiba Satellite P500-PSPGSC-01800T ALSA: hda: Use olpc-xo-1_5 quirk for Toshiba Satellite Pro T130-15F ALSA: hda - fix array indexing while creating inputs for Cirrus codecs ALSA: es968: fix wrong PnP dma index
2010-05-05Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: joydev - allow binding to button-only devices Input: elantech - ignore high bits in the position coordinates Input: elantech - allow forcing Elantech protocol Input: elantech - fix firmware version check Input: ati_remote - add some missing devices from lirc_atiusb Input: eeti_ts - cancel pending work when going to suspend Input: Add support of Synaptics Clickpad device Revert "Input: ALPS - add signature for HP Pavilion dm3 laptops" Input: psmouse - ignore parity error for basic protocols
2010-05-05raid6: fix recovery performance regressionDan Williams
The raid6 recovery code should immediately drop back to the optimized synchronous path when a p+q dma resource is not available. Otherwise we run the non-optimized/multi-pass async code in sync mode. Verified with raid6test (NDISKS=255) Applies to kernels >= 2.6.32. Cc: <stable@kernel.org> Acked-by: NeilBrown <neilb@suse.de> Reported-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-06TOMOYO: Use GFP_NOFS rather than GFP_KERNEL.Tetsuo Handa
In Ubuntu, security_path_*() hooks are exported to Unionfs. Thus, prepare for being called from inside VFS functions because I'm not sure whether it is safe to use GFP_KERNEL or not. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-05KEYS: call_sbin_request_key() must write lock keyrings before modifying themDavid Howells
call_sbin_request_key() creates a keyring and then attempts to insert a link to the authorisation key into that keyring, but does so without holding a write lock on the keyring semaphore. It will normally get away with this because it hasn't told anyone that the keyring exists yet. The new keyring, however, has had its serial number published, which means it can be accessed directly by that handle. This was found by a previous patch that adds RCU lockdep checks to the code that reads the keyring payload pointer, which includes a check that the keyring semaphore is actually locked. Without this patch, the following command: keyctl request2 user b a @s will provoke the following lockdep warning is displayed in dmesg: =================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- security/keys/keyring.c:727 invoked rcu_dereference_check() without protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 2 locks held by keyctl/2076: #0: (key_types_sem){.+.+.+}, at: [<ffffffff811a5b29>] key_type_lookup+0x1c/0x71 #1: (keyring_serialise_link_sem){+.+.+.}, at: [<ffffffff811a6d1e>] __key_link+0x4d/0x3c5 stack backtrace: Pid: 2076, comm: keyctl Not tainted 2.6.34-rc6-cachefs #54 Call Trace: [<ffffffff81051fdc>] lockdep_rcu_dereference+0xaa/0xb2 [<ffffffff811a6d1e>] ? __key_link+0x4d/0x3c5 [<ffffffff811a6e6f>] __key_link+0x19e/0x3c5 [<ffffffff811a5952>] ? __key_instantiate_and_link+0xb1/0xdc [<ffffffff811a59bf>] ? key_instantiate_and_link+0x42/0x5f [<ffffffff811aa0dc>] call_sbin_request_key+0xe7/0x33b [<ffffffff8139376a>] ? mutex_unlock+0x9/0xb [<ffffffff811a5952>] ? __key_instantiate_and_link+0xb1/0xdc [<ffffffff811a59bf>] ? key_instantiate_and_link+0x42/0x5f [<ffffffff811aa6fa>] ? request_key_auth_new+0x1c2/0x23c [<ffffffff810aaf15>] ? cache_alloc_debugcheck_after+0x108/0x173 [<ffffffff811a9d00>] ? request_key_and_link+0x146/0x300 [<ffffffff810ac568>] ? kmem_cache_alloc+0xe1/0x118 [<ffffffff811a9e45>] request_key_and_link+0x28b/0x300 [<ffffffff811a89ac>] sys_request_key+0xf7/0x14a [<ffffffff81052c0b>] ? trace_hardirqs_on_caller+0x10c/0x130 [<ffffffff81394fb9>] ? trace_hardirqs_on_thunk+0x3a/0x3f [<ffffffff81001eeb>] system_call_fastpath+0x16/0x1b Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-05KEYS: Use RCU dereference wrappers in keyring key type codeDavid Howells
The keyring key type code should use RCU dereference wrappers, even when it holds the keyring's key semaphore. Reported-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-05KEYS: find_keyring_by_name() can gain access to a freed keyringToshiyuki Okajima
find_keyring_by_name() can gain access to a keyring that has had its reference count reduced to zero, and is thus ready to be freed. This then allows the dead keyring to be brought back into use whilst it is being destroyed. The following timeline illustrates the process: |(cleaner) (user) | | free_user(user) sys_keyctl() | | | | key_put(user->session_keyring) keyctl_get_keyring_ID() | || //=> keyring->usage = 0 | | |schedule_work(&key_cleanup_task) lookup_user_key() | || | | kmem_cache_free(,user) | | . |[KEY_SPEC_USER_KEYRING] | . install_user_keyrings() | . || | key_cleanup() [<= worker_thread()] || | | || | [spin_lock(&key_serial_lock)] |[mutex_lock(&key_user_keyr..mutex)] | | || | atomic_read() == 0 || | |{ rb_ease(&key->serial_node,) } || | | || | [spin_unlock(&key_serial_lock)] |find_keyring_by_name() | | ||| | keyring_destroy(keyring) ||[read_lock(&keyring_name_lock)] | || ||| | |[write_lock(&keyring_name_lock)] ||atomic_inc(&keyring->usage) | |. ||| *** GET freeing keyring *** | |. ||[read_unlock(&keyring_name_lock)] | || || | |list_del() |[mutex_unlock(&key_user_k..mutex)] | || | | |[write_unlock(&keyring_name_lock)] ** INVALID keyring is returned ** | | . | kmem_cache_free(,keyring) . | . | atomic_dec(&keyring->usage) v *** DESTROYED *** TIME If CONFIG_SLUB_DEBUG=y then we may see the following message generated: ============================================================================= BUG key_jar: Poison overwritten ----------------------------------------------------------------------------- INFO: 0xffff880197a7e200-0xffff880197a7e200. First byte 0x6a instead of 0x6b INFO: Allocated in key_alloc+0x10b/0x35f age=25 cpu=1 pid=5086 INFO: Freed in key_cleanup+0xd0/0xd5 age=12 cpu=1 pid=10 INFO: Slab 0xffffea000592cb90 objects=16 used=2 fp=0xffff880197a7e200 flags=0x200000000000c3 INFO: Object 0xffff880197a7e200 @offset=512 fp=0xffff880197a7e300 Bytes b4 0xffff880197a7e1f0: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Object 0xffff880197a7e200: 6a 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b jkkkkkkkkkkkkkkk Alternatively, we may see a system panic happen, such as: BUG: unable to handle kernel NULL pointer dereference at 0000000000000001 IP: [<ffffffff810e61a3>] kmem_cache_alloc+0x5b/0xe9 PGD 6b2b4067 PUD 6a80d067 PMD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/kernel/kexec_crash_loaded CPU 1 ... Pid: 31245, comm: su Not tainted 2.6.34-rc5-nofixed-nodebug #2 D2089/PRIMERGY RIP: 0010:[<ffffffff810e61a3>] [<ffffffff810e61a3>] kmem_cache_alloc+0x5b/0xe9 RSP: 0018:ffff88006af3bd98 EFLAGS: 00010002 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffff88007d19900b RDX: 0000000100000000 RSI: 00000000000080d0 RDI: ffffffff81828430 RBP: ffffffff81828430 R08: ffff88000a293750 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000100000 R12: 00000000000080d0 R13: 00000000000080d0 R14: 0000000000000296 R15: ffffffff810f20ce FS: 00007f97116bc700(0000) GS:ffff88000a280000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000001 CR3: 000000006a91c000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process su (pid: 31245, threadinfo ffff88006af3a000, task ffff8800374414c0) Stack: 0000000512e0958e 0000000000008000 ffff880037f8d180 0000000000000001 0000000000000000 0000000000008001 ffff88007d199000 ffffffff810f20ce 0000000000008000 ffff88006af3be48 0000000000000024 ffffffff810face3 Call Trace: [<ffffffff810f20ce>] ? get_empty_filp+0x70/0x12f [<ffffffff810face3>] ? do_filp_open+0x145/0x590 [<ffffffff810ce208>] ? tlb_finish_mmu+0x2a/0x33 [<ffffffff810ce43c>] ? unmap_region+0xd3/0xe2 [<ffffffff810e4393>] ? virt_to_head_page+0x9/0x2d [<ffffffff81103916>] ? alloc_fd+0x69/0x10e [<ffffffff810ef4ed>] ? do_sys_open+0x56/0xfc [<ffffffff81008a02>] ? system_call_fastpath+0x16/0x1b Code: 0f 1f 44 00 00 49 89 c6 fa 66 0f 1f 44 00 00 65 4c 8b 04 25 60 e8 00 00 48 8b 45 00 49 01 c0 49 8b 18 48 85 db 74 0d 48 63 45 18 <48> 8b 04 03 49 89 00 eb 14 4c 89 f9 83 ca ff 44 89 e6 48 89 ef RIP [<ffffffff810e61a3>] kmem_cache_alloc+0x5b/0xe9 This problem is that find_keyring_by_name does not confirm that the keyring is valid before accepting it. Skipping keyrings that have been reduced to a zero count seems the way to go. To this end, use atomic_inc_not_zero() to increment the usage count and skip the candidate keyring if that returns false. The following script _may_ cause the bug to happen, but there's no guarantee as the window of opportunity is small: #!/bin/sh LOOP=100000 USER=dummy_user /bin/su -c "exit;" $USER || { /usr/sbin/adduser -m $USER; add=1; } for ((i=0; i<LOOP; i++)) do /bin/su -c "echo '$i' > /dev/null" $USER done (( add == 1 )) && /usr/sbin/userdel -r $USER exit Note that the nominated user must not be in use. An alternative way of testing this may be: for ((i=0; i<100000; i++)) do keyctl session foo /bin/true || break done >&/dev/null as that uses a keyring named "foo" rather than relying on the user and user-session named keyrings. Reported-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: David Howells <dhowells@redhat.com> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-05Merge branch 'fix/hda' into for-linusTakashi Iwai
2010-05-05ALSA: hda: Fix 0 dB for Packard Bell models using Conexant CX20549 (Venice)Daniel T Chen
BugLink: https://launchpad.net/bugs/541802 The OR's hardware distorts at PCM 100% because it does not correspond to 0 dB. Fix this in patch_cxt5045() for all Packard Bell models. Reported-by: Valombre Cc: <stable@kernel.org> Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-05ALSA: hda - Add quirk for Dell Inspiron 19T using a Conexant CX20582Anisse Astier
Add a quirk for all-in-one computer Dell Inspiron One 19 Touch to have proper HP and Mic support. Signed-off-by: Anisse Astier <anisse@astier.eu> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-05ALSA: take tu->qlock with irqs disabledDan Carpenter
We should disable irqs when we take the tu->qlock because it is used in the irq handler. The only place that doesn't is snd_timer_user_ccallback(). Most of the time snd_timer_user_ccallback() is called with interrupts disabled but the the first ti->ccallback() call in snd_timer_notify1() has interrupts enabled. This was caught by lockdep which generates the following message: > ================================= > [ INFO: inconsistent lock state ] > 2.6.34-rc5 #5 > --------------------------------- > inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. > dolphin/4003 [HC1[1]:SC0[0]:HE0:SE1] takes: > (&(&tu->qlock)->rlock){?.+...}, at: [<f84ec472>] snd_timer_user_tinterrupt+0x28/0x132 [snd_timer] > {HARDIRQ-ON-W} state was registered at: > [<c1048de9>] __lock_acquire+0x654/0x1482 > [<c1049c73>] lock_acquire+0x5c/0x73 > [<c125ac3e>] _raw_spin_lock+0x25/0x34 > [<f84ec370>] snd_timer_user_ccallback+0x55/0x95 [snd_timer] > [<f84ecc4b>] snd_timer_notify1+0x53/0xca [snd_timer] Reported-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-05FEC: Fix kernel panic in fec_set_mac_address.Mattias Walström
Fix memory corruption that sometimes result in kernel panic. Signed-off-by: Mattias Walström <mattias@vmlinux.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-05ALSA: hda: Use olpc-xo-1_5 quirk for Toshiba Satellite P500-PSPGSC-01800TDaniel T Chen
BugLink: https://launchpad.net/bugs/549267 The OR verified that using the olpc-xo-1_5 model quirk allows the headphones to be audible when inserted into the jack. Capture was also verified to work correctly. Reported-by: Richard Gagne Tested-by: Richard Gagne Cc: <stable@kernel.org> Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-05ALSA: hda: Use olpc-xo-1_5 quirk for Toshiba Satellite Pro T130-15FDaniel T Chen
BugLink: https://launchpad.net/bugs/573284 The OR verified that using the olpc-xo-1_5 model quirk allows the headphones to be audible when inserted into the jack. Capture was also verified to work correctly. Reported-by: Andy Couldrake <acouldrake@googlemail.com> Tested-by: Andy Couldrake <acouldrake@googlemail.com> Cc: <stable@kernel.org> Signed-off-by: Daniel T Chen <crimsun@ubuntu.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-05ALSA: hda - fix array indexing while creating inputs for Cirrus codecsBrian J. Tarricone
This fixes a problem where cards show up as only having a single mixer element, suppressing all sound output. Signed-off-by: Brian J. Tarricone <brian@tarricone.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-05-04Merge branch 'drm-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms/legacy: only enable load detection property on DVI-I drm/radeon/kms: fix panel scaling adjusted mode setup drivers/gpu/drm/drm_sysfs.c: sysfs files error handling drivers/gpu/drm/radeon/radeon_atombios.c: range check issues gpu: vga_switcheroo, fix lock imbalance drivers/gpu/drm/drm_memory.c: fix check for end of loop drivers/gpu/drm/via/via_video.c: fix off by one issue drm/radeon/kms/agp The wrong AGP chipset can cause a NULL pointer dereference drm/radeon/kms: r300 fix CS checker to allow zbuffer-only fastfill
2010-05-04Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip: powernow-k8: Fix frequency reporting x86: Fix parse_reservetop() build failure on certain configs x86: Fix NULL pointer access in irq_force_complete_move() for Xen guests x86: Fix 'reservetop=' functionality
2010-05-04Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: KEYS: Fix RCU handling in key_gc_keyring() KEYS: Fix an RCU warning in the reading of user keys
2010-05-05KEYS: Fix RCU handling in key_gc_keyring()David Howells
key_gc_keyring() needs to either hold the RCU read lock or hold the keyring semaphore if it's going to scan the keyring's list. Given that it only needs to read the key list, and it's doing so under a spinlock, the RCU read lock is the thing to use. Furthermore, the RCU check added in e7b0a61b7929632d36cf052d9e2820ef0a9c1bfe is incorrect as holding the spinlock on key_serial_lock is not grounds for assuming a keyring's pointer list can be read safely. Instead, a simple rcu_dereference() inside of the previously mentioned RCU read lock is what we want. Reported-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-05KEYS: Fix an RCU warning in the reading of user keysDavid Howells
Fix an RCU warning in the reading of user keys: =================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- security/keys/user_defined.c:202 invoked rcu_dereference_check() without protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 1 lock held by keyctl/3637: #0: (&key->sem){+++++.}, at: [<ffffffff811a80ae>] keyctl_read_key+0x9c/0xcf stack backtrace: Pid: 3637, comm: keyctl Not tainted 2.6.34-rc5-cachefs #18 Call Trace: [<ffffffff81051f6c>] lockdep_rcu_dereference+0xaa/0xb2 [<ffffffff811aa55f>] user_read+0x47/0x91 [<ffffffff811a80be>] keyctl_read_key+0xac/0xcf [<ffffffff811a8a06>] sys_keyctl+0x75/0xb7 [<ffffffff81001eeb>] system_call_fastpath+0x16/0x1b Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-05drm/radeon/kms/legacy: only enable load detection property on DVI-IAlex Deucher
DVI-D doesn't have analog. This matches the avivo behavior. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-05-05drm/radeon/kms: fix panel scaling adjusted mode setupAlex Deucher
This should duplicate exactly what the ddx does for both legacy and avivo. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-05-05ima: remove ACPI dependencyMimi Zohar
The ACPI dependency moved to the TPM, where it belongs. Although IMA per-se does not require access to the bios measurement log, verifying the IMA boot aggregate does, which requires ACPI. This patch prereq's 'TPM: ACPI/PNP dependency removal' http://lkml.org/lkml/2010/5/4/378. Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Reported-by: Jean-Christophe Dubois <jcd@tribudubois.net> Acked-by: Serge Hallyn <serue@us.ibm.com> Tested-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-05TPM: ACPI/PNP dependency removalRajiv Andrade
This patch pushes the ACPI dependency into the device driver code itself. Now, even without ACPI/PNP enabled, the device can be registered using the TIS specified memory space. This will however result in the lack of access to the bios event log, being the only implication of such ACPI removal. Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com> Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
2010-05-04Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: ocfs2: Avoid a gcc warning in ocfs2_wipe_inode(). ocfs2: Avoid direct write if we fall back to buffered I/O ocfs2_dlmfs: Fix math error when reading LVB. ocfs2: Update VFS inode's id info after reflink. ocfs2: potential ERR_PTR dereference on error paths ocfs2: Add directory entry later in ocfs2_symlink() and ocfs2_mknod() ocfs2: use OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_mknod error path ocfs2: use OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_symlink error path ocfs2: add OCFS2_INODE_SKIP_ORPHAN_DIR flag and honor it in the inode wipe code ocfs2: Reset status if we want to restart file extension. ocfs2: Compute metaecc for superblocks during online resize. ocfs2: Check the owner of a lockres inside the spinlock ocfs2: one more warning fix in ocfs2_file_aio_write(), v2 ocfs2_dlmfs: User DLM_* when decoding file open flags.
2010-05-04Fix the x86_64 implementation of call_rwsem_wait()David Howells
The x86_64 call_rwsem_wait() treats the active state counter part of the R/W semaphore state as being 16-bit when it's actually 32-bit (it's half of the 64-bit state). It should do "decl %edx" not "decw %dx". Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>