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path: root/drivers/usb/serial
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2010-10-22USB: ftdi_sio: Add PID for accesio productsRich Mattes
Adds support for Accesio USB to Serial adapters, which are built around FTDI FT232 UARTs. Tested with the Accesio USB-COM-4SM. Signed-off-by: Rich Mattes <richmattes@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22USB: option: Add more ZTE modem USB id'sMauro Carvalho Chehab
There are lots of ZTE USB id's currently not covered by usb/serial. Adds them, to allow those devices to work properly on Linux. While here, put the USB ID's for 0x2002/0x2003 at the sorted order. This patch is based on zte.c file found on MF645. PS.: The ZTE driver is commenting the USB ID for 0x0053. It also adds, commented, an USB ID for 0x0026. Not sure why, but I think that 0053 is used by their devices in storage mode only. So, I opted to keep the comment on this patch. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22USB: sam-ba: add driver for Atmel SAM Boot Assistant (SAM-BA)Johan Hovold
Add new driver to access the SAM-BA boot application of Atmel AT91SAM devices. The SAM-BA firmware cannot handle merged write requests so we cannot use the generic write implementation (which uses the port write fifo). Tested with the SAM-BA 2.10 tools and an Atmel at91sam9260-ek. Signed-off-by: Johan Hovold <jhovold@gmail.com> Tested-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22tty: Fix warning left over from TIOCGICOUNT changesAlan Cox
Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22tty: Convert the USB drivers to the new icount interfaceAlan Cox
Simple pasting job using the new ops function. Also fix a couple of devices directly returning the internal struct (which happens at this point to match for the fields that matter but isn't correct or futureproof) Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22tty: Make tiocgicount a handlerAlan Cox
Dan Rosenberg noted that various drivers return the struct with uncleared fields. Instead of spending forever trying to stomp all the drivers that get it wrong (and every new driver) do the job in one place. This first patch adds the needed operations and hooks them up, including the needed USB midlayer and serial core plumbing. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-18Update broken web addresses in the kernel.Justin P. Mattock
The patch below updates broken web addresses in the kernel Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Cc: Maciej W. Rozycki <macro@linux-mips.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Finn Thain <fthain@telegraphics.com.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Matt Turner <mattst88@gmail.com> Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Acked-by: Ben Pfaff <blp@cs.stanford.edu> Acked-by: Hans J. Koch <hjk@linutronix.de> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-09-20USB: serial/mos*: prevent reading uninitialized stack memoryDan Rosenberg
The TIOCGICOUNT device ioctl in both mos7720.c and mos7840.c allows unprivileged users to read uninitialized stack memory, because the "reserved" member of the serial_icounter_struct struct declared on the stack is not altered or zeroed before being copied back to the user. This patch takes care of it. Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03USB: ftdi_sio: Added custom PIDs for ChamSys productsLuke Lowrey
Added the 0xDAF8 to 0xDAFF PID range for ChamSys limited USB interface/wing products Signed-off-by: Luke Lowrey <luke@chamsys.co.uk> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03usb: serial: mos7840: Add USB IDs to support more B&B USB/RS485 converters.Dave Ludlow
Add the USB IDs needed to support the B&B USOPTL4-4P, USO9ML2-2P, and USO9ML2-4P. This patch expands and corrects a typo in the patch sent on 08-31-2010. Signed-off-by: Dave Ludlow <dave.ludlow@bay.ws> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03usb: serial: mos7840: Add USB ID to support the B&B Electronics USOPTL4-2P.Dave Ludlow
Add the USB ID needed to support B&B Electronic's 2-port, optically-isolated, powered, USB to RS485 converter. Signed-off-by: Dave Ludlow <dave.ludlow@bay.ws> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03USB: ssu100: turn off debug flagBill Pemberton
Remove the hard coding of the debug flag to 1. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03USB: cp210x usb driver: add USB_DEVICE for Pirelli DP-L10 mobile.A E Lawrence
The Pirelli DP-L10 mobile is sold under various brand names. One, already supported by cp210x, is the T-COM TC300. Here is the lsusb for that version: ------------------------------------------------------------------- Bus 001 Device 002: ID 0489:e000 Foxconn / Hon Hai T-Com TC 300 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0489 Foxconn / Hon Hai idProduct 0xe000 T-Com TC 300 bcdDevice 1.00 iManufacturer 1 Silicon Labs iProduct 2 TC 300 iSerial 3 0001 [snip] --------------------------------------------------------------------------- However the native Pirelli DP-L10 is not supported: ------------------------------------------------------------------ Bus 001 Device 003: ID 0489:e003 Foxconn / Hon Hai Pirelli DP-L10 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 (Defined at Interface level) bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0489 Foxconn / Hon Hai idProduct 0xe003 Pirelli DP-L10 bcdDevice 1.00 iManufacturer 1 Silicon Labs iProduct 2 DP-L10 iSerial 3 0001 [snip] ------------------------------------------------------------------------- All that is required is an extra USB_DEVICE entry: { USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM +Mobile */ The patch adds that entry. Tested under 2.6.36-rc2 from git. Signed-off-by: A E Lawrence <lawrence_a_e@ntlworld.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03USB: cp210x: Add B&G H3000 link cable IDJason Detring
This is the cable between an H3000 navigation unit and a multi-function display. http://www.bandg.com/en/Products/H3000/Spares-and-Accessories/Cables/H3000-CPU-USB-Cable-Pack/ Signed-off-by: Jason Detring <jason.detring@navico.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03USB: CP210x Add new device IDCraig Shelley
New device ID added for Balluff RFID reader. Signed-off-by: Craig Shelley <craig@microtron.org.uk> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03USB: option: fix incorrect novatel entriesDirk De Schepper
Unfortunately some of the hardware PID belonging to auto-install CDROM (AICD) of Novatel modems found their way into the option module. This causes the AICD to be treated as a modem in stead of a disk. Since the modem ports do not appear until after the AICD is ejected, this essentially disables the modem. After a couple of minutes the AICD should auto-eject, but it is just too long a wait. The frequency of the failure seems to depend on both the hardware and the linux distribution. Here is a patch that fixes this up, and also adds a couple of new PID, offering some explanations and removing some incomplete and unnecessary comments. Signed-off-by: Dirk De Schepper <ddeschepper@nvtl.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-28Merge 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: pxa27x_keypad - remove input_free_device() in pxa27x_keypad_remove() Input: mousedev - fix regression of inverting axes Input: uinput - add devname alias to allow module on-demand load Input: hil_kbd - fix compile error USB: drop tty argument from usb_serial_handle_sysrq_char() Input: sysrq - drop tty argument form handle_sysrq() Input: sysrq - drop tty argument from sysrq ops handlers
2010-08-23USB: ftdi_sio: add product ID for Lenz LI-USBGalen Seitz
Add ftdi product ID for Lenz LI-USB, a model train interface. This was NOT tested against 2.6.35, but a similar patch was tested with the CentOS 2.6.18-194.11.1.el5 kernel. It wasn't clear to me what ordering is being used in ftdi_sio.c, so I inserted the ID after another model train entry(SPROG_II). Signed-off-by: Galen Seitz <galens@seitzassoc.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: ftdi_sio: Add ID for Ionics PlugComputerMartin Michlmayr
Add the ID for the Ionics PlugComputer (<http://ionicsplug.com/>). Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: serial: io_ti.c: don't return 0 if writing the download record failedRoel Kluin
If the write download record failed we shouldn't return 0. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: ssu100: set tty_flags in ssu100_process_packetBill Pemberton
flag was never set in ssu100_process_packet. Add logic to set it before calling tty_insert_flip_* Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: ssu100: add disconnect function for ssu100Bill Pemberton
Add a disconnect function to the functions of this device. The disconnect is a call to usb_serial_generic_disconnect() so it requires that symbol to be exported from generic.c. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: serial: export symbol usb_serial_generic_disconnectBill Pemberton
This is needed by the ssu100 driver to use this function. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: ssu100: rework logic for TIOCMIWAITBill Pemberton
Rework the logic for TIOCMIWAIT to use wait_event_interruptible. This also adds support for TIOCGICOUNT. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: ssu100: add register parameter to ssu100_setregisterBill Pemberton
The function ssu100_setregister was hard coded to only set the MCR register. Add a register parameter so that other registers can be set. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: ssu100: remove duplicate #defines in ssu100Bill Pemberton
The ssu100 uses a TI16C550C UART so the SERIAL_ defines in this code are duplicates of those found in serial_reg.h. Remove the defines in ssu100.c and use the ones in the header file. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: ssu100: refine process_packet in ssu100Bill Pemberton
The status information does not appear at the start of each incoming packet so the check for len < 4 at the start of ssu100_process_packet is wrong. Remove it. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: ssu100: add locking for port private data in ssu100Bill Pemberton
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: io_ti: check firmware version before updatingGreg Kroah-Hartman
If we can't read the firmware for a device from the disk, and yet the device already has a valid firmware image in it, we don't want to replace the firmware with something invalid. So check the version number to be less than the current one to verify this is the correct thing to do. Reported-by: Chris Beauchamp <chris@chillibean.tv> Tested-by: Chris Beauchamp <chris@chillibean.tv> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: ftdi_sio: fix endianess of max packet sizeMichael Wileczka
The USB max packet size (always little-endian) was not being byte swapped on big-endian systems. Applicable since [USB: ftdi_sio: fix hi-speed device packet size calculation] approx 2.6.31 Signed-off-by: Michael Wileczka <mikewileczka@yahoo.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: CP210x Fix Break On/OffCraig Shelley
The definitions for BREAK_ON and BREAK_OFF are inverted, causing break requests to fail. This patch sets BREAK_ON and BREAK_OFF to the correct values. Signed-off-by: Craig Shelley <craig@microtron.org.uk> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: pl2303: New vendor and product idJef Driesen
Add support for the Zeagle N2iTiON3 dive computer interface. Since Zeagle devices are actually manufactured by Seiko, this patch will support other Seiko based models as well. Signed-off-by: Jef Driesen <jefdriesen@telenet.be> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: serial: fix leak of usb serial module refrence countMing Lei
The patch with title below makes reference count of usb serial module always more than one after driver is bound. USB-BKL: Remove BKL use for usb serial driver probing In fact, the patch above only replaces lock_kernel() with try_module_get() , and does not use module_put() to do what unlock_kernel() did, so casue leak of reference count of usb serial module and the module can not be unloaded after serial driver is bound with device. This patch fixes the issue, also simplifies such things: -only call try_module_get() once in the entry of usb_serial_probe() -only call module_put() once in the exit of usb_serial_probe Signed-off-by: Ming Lei <tom.leiming@gmail.com> Cc: Johan Hovold <jhovold@gmail.com> Cc: Andi Kleen <ak@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: add device IDs for igotu to navmanRoss Burton
I recently bought a i-gotU USB GPS, and whilst hunting around for linux support discovered this post by you back in 2009: http://kerneltrap.org/mailarchive/linux-usb/2009/3/12/5148644 >Try the navman driver instead. You can either add the device id to the > driver and rebuild it, or do this before you plug the device in: > modprobe navman > echo -n "0x0df7 0x0900" > /sys/bus/usb-serial/drivers/navman/new_id > > and then plug your device in and see if that works. I can confirm that the navman driver works with the right device IDs on my i-gotU GT-600, which has the same device IDs. Attached is a patch adding the IDs. From: Ross Burton <ross@linux.intel.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23USB: option: add Celot CT-650Michael Tokarev
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-21USB: drop tty argument from usb_serial_handle_sysrq_char()Dmitry Torokhov
Since handle_sysrq() does not take tty as argument anymore we can drop it from usb_serial_handle_sysrq_char() as well. Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-08-21Input: sysrq - drop tty argument form handle_sysrq()Dmitry Torokhov
Sysrq operations do not accept tty argument anymore so no need to pass it to us. [Stephen Rothwell <sfr@canb.auug.org.au>: fix build breakage in drm code caused by sysrq using bool but not including linux/types.h] [Sachin Sant <sachinp@in.ibm.com>: fix build breakage in s390 keyboadr driver] Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-08-11Merge branch 'master' into for-nextJiri Kosina
Conflicts: fs/exofs/inode.c
2010-08-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (148 commits) USB: serial: fix stalled writes USB: remove fake "address-of" expressions USB: fix thread-unsafe anchor utiliy routines USB: usbtest: support test device with only one iso-in or iso-out endpoint USB: usbtest: avoid to free coherent buffer in atomic context USB: xhci: Set DMA mask for host. USB: xhci: Don't flush doorbell writes. USB: xhci: Reduce reads and writes of interrupter registers. USB: xhci: Make xhci_set_hc_event_deq() static. USB: xhci: Minimize HW event ring dequeue pointer writes. USB: xhci: Make xhci_handle_event() static. USB: xhci: Remove unnecessary reads of IRQ_PENDING register. USB: xhci: Performance - move xhci_work() into xhci_irq() USB: xhci: Performance - move interrupt handlers into xhci-ring.c USB: xhci: Performance - move functions that find ep ring. USB:: fix linux/usb.h kernel-doc warnings USB: add USB serial ssu100 driver USB: usb-storage: implement autosuspend USB: ehci: fix remove of ehci debugfs dir USB: Add USB 2.0 to ssb ohci driver ...
2010-08-10USB: serial: fix stalled writesJohan Hovold
As David VomLehn points out, it was possible to receive an interrupt before clearing the free-urb flag which could lead to the urb being incorrectly marked as busy. For the same reason, move tx_bytes accounting so that it will never be negative. Note that the free-flags set and clear operations do not need any additional locking as they are manipulated while USB_SERIAL_WRITE_BUSY is set. Reported-by: David VomLehn <dvomlehn@cisco.com> Tested-by: David VomLehn <dvomlehn@cisco.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: add USB serial ssu100 driverBill Pemberton
Add support for the Quatech SSU-100 single port usb to serial device. This driver is based on the ftdi_sio.c driver and the original serqt_usb driver from Quatech. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: cp210x: Add four new device IDsAlessio Igor Bogani
Signed-off-by: Alessio Igor Bogani <abogani@texware.it> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: ftdi_sio: device id for Navitatordranch@trinnet.net
This patch is to add a US Interface, Inc. "Navigator" USB device. Specifically, it's a HAM Radio USB sound modem that also incorporates three pairs of unique FTDI serial ports. The standard Linux FTDI serial driver will only recognize the first two serial ports of an unknown FDTI derived device and this patch adds in recognition to these specific new IDs. Signed-off-by: David A. Ranch <dranch@trinnet.net> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: option: add huawei k3765 k4505 devices to work properlyAndrew Bird
This patch adds the product IDs of Huawei's K3765 and K4505 mobile broadband usb modems to option.c. It also adds a quirk to the option probe function so that binding to the device's network interface(class 0xff) is avoided. This is necessary to allow another driver to bind to that, and to avoid programs like wvdial opening a nonfunctioning tty during modem discovery. Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: serial: enabling support for Segway RMP in ftdi_sioJohn G. Rogers
I have added the ProductID=0xe729 VendorID=FTDI_VID=0x0403 which will enable support for the Segway Robotic Mobility Platform (RMP200) in the ftdi_sio kernel module. Currently, users of the Segway RMP200 must use a RUN+="/sbin/modprobe -q ftdi-sio product=0xe729 vendor=0x0403 in a udev rule to get the ftdi_sio module to handle the usb interface and mount it on /dev/ttyXXX. This is not a good solution because some users will have multiple USB to Serial converters which will use the ftdi_sio module. Signed-off-by: John Rogers <jgrogers@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: option: Huawei ETS 1220 support addedPavel Kazlou
The patch adds Huawei ETS 1220 product id into the list of supported devices in 'option' usb serial driver. Signed-off-by: Pavel Kazlou <p.i.kazlou@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: io_ti.c: don't return 0 if writing the download record failedRoel Kluin
If the write download record failed we shouldn't return 0. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: serial: enable async suspend for usb serial port deviceMing Lei
Usb serial port device is child of its usb interface device, so we can enable async suspend of usb serial port device to speedup system suspend. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB: serial: io_ti: Don't return 0 if writing the download record failedRoel Kluin
If the write download record failed we shouldn't return 0. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10USB-BKL: Remove BKL use for usb serial driver probingAndi Kleen
The usb serial driver initialization tried to use the BKL to stop driver modules from unloading, but that didn't work anyways. There was already some code to do proper try_module_get, but it was conditional on having a new probe interface. I checked all the low level drivers and they all have proper .owner = THIS_MODULE, so it's ok to always use. The other problem was the usb_serial_driver_list needing protection by a lock. This was broken anyways because unregister did not necessarily have the BKL. I extended the extending table_lock mutex to protect this case too. With these changes the BKL can be removed here. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>