- 02 Sep, 2013 3 commits
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Bruno Prémont authored
When picolcd is switched into bootloader mode (for FW flashing) make sure not to try to dereference NULL-pointers of feature-devices during unplug/unbind. This fixes following BUG: BUG: unable to handle kernel NULL pointer dereference at 00000298 IP: [<f811f56b>] picolcd_exit_framebuffer+0x1b/0x80 [hid_picolcd] *pde = 00000000 Oops: 0000 [#1] Modules linked in: hid_picolcd syscopyarea sysfillrect sysimgblt fb_sys_fops CPU: 0 PID: 15 Comm: khubd Not tainted 3.11.0-rc7-00002-g50d62d4 #2 EIP: 0060:[<f811f56b>] EFLAGS: 00010292 CPU: 0 EIP is at picolcd_exit_framebuffer+0x1b/0x80 [hid_picolcd] Call Trace: [<f811d1ab>] picolcd_remove+0xcb/0x120 [hid_picolcd] [<c1469b09>] hid_device_remove+0x59/0xc0 [<c13464ca>] __device_release_driver+0x5a/0xb0 [<c134653f>] device_release_driver+0x1f/0x30 [<c134603d>] bus_remove_device+0x9d/0xd0 [<c13439a5>] device_del+0xd5/0x150 [<c14696a4>] hid_destroy_device+0x24/0x60 [<c1474cbb>] usbhid_disconnect+0x1b/0x40 ... Signed-off-by:
Bruno Prémont <bonbons@linux-vserver.org> Cc: stable@kernel.org Signed-off-by:
Jiri Kosina <jkosina@suse.cz>
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Vasily Titskiy authored
The DuoSense touchscreen device causes a 10 second timeout. This fix removes the delay. Signed-off-by:
Vasily Titskiy <qehgt0@gmail.com> Signed-off-by:
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Marcel Holtmann authored
For simple device node creation, add the devname module alias. Signed-off-by:
Marcel Holtmann <marcel@holtmann.org> Reviewed-by:
David Herrmann <dh.herrmann@gmail.com> Signed-off-by:
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- 26 Aug, 2013 4 commits
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Yonghua Zheng authored
It is unsafe to call list_for_each_entry in hidraw_report_event to traverse each hidraw_list node without a lock protection, the list could be modified if someone calls hidraw_release and list_del to remove itself from the list, this can cause hidraw_report_event to touch a deleted list struct and panic. To prevent this, introduce a spinlock in struct hidraw to protect list from concurrent access. Signed-off-by:
Yonghua Zheng <younghua.zheng@gmail.com> Signed-off-by:
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Stefan Kriwanek authored
Some devices of the "Speedlink VAD Cezanne" model need more aggressive fixing than already done. I made sure through testing that this patch would not interfere with the proper working of a device that is bug-free. (The driver drops EV_REL events with abs(val) >= 256, which are not achievable even on the highest laser resolution hardware setting.) Signed-off-by:
Stefan Kriwanek <mail@stefankriwanek.de> Signed-off-by:
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Andy Shevchenko authored
This patch fixes the style of the comments to be like following /* The commentary */ There is no functional change. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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Wei Yongjun authored
module_hid_driver() makes the code simpler by eliminating boilerplate code. Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
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- 20 Aug, 2013 2 commits
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Paul Gortmaker authored
To fix: # Untracked files: # (use "git add <file>..." to include in what will be committed) # # samples/hidraw/hid-example as seen in git status output after an allyesconfig build. Signed-off-by:
Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by:
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David Herrmann authored
Until today all gamepad input drivers report their data differently. It is nearly impossible to write applications for more than one device in a generic way. Therefore, this patch introduces a uniform gamepad API which will be used for all new drivers. Instead of mapping buttons by their labels, we now map them by position. This allows applications to work with any gamepad regardless of the labels on the buttons. Furthermore, we standardize the ABS_* codes for analog triggers and sticks. For D-Pads the long overdue BTN_DPAD_* codes are introduced. They should be fairly obvious how to use. To avoid confusion, the action buttons now have BTN_EAST/SOUTH/WEST/NORTH aliases. Reported-by:
Todd Showalter <todd@electronjump.com> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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- 09 Aug, 2013 1 commit
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Manoj Chourasia authored
This changes puts the commit 4fe9f8e2 back in place with the fixes for slab corruption because of the commit. When a device is unplugged, wait for all processes that have opened the device to close before deallocating the device. This commit was solving kernel crash because of the corruption in rb tree of vmalloc. The rootcause was the device data pointer was geting excessed after the memory associated with hidraw was freed. The commit 4fe9f8e2 was buggy as it was also freeing the hidraw first and then calling delete operation on the list associated with that hidraw leading to slab corruption. Signed-off-by:
Manoj Chourasia <mchourasia@nvidia.com> Tested-by:
Peter Wu <lekensteyn@gmail.com> Cc: stable@vger.kernel.org Signed-off-by:
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- 05 Aug, 2013 2 commits
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Andy Shevchenko authored
There is no need to pass constants via stack. The width may be explicitly specified in the format. Signed-off-by:
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Andy Shevchenko authored
There is no need to pass constants via stack. The width may be explicitly specified in the format. Signed-off-by:
Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by:
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- 31 Jul, 2013 1 commit
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Peter Hurley authored
The ll_driver's .hidinput_input_event() method is called from atomic context [1]. Use GFP_ATOMIC for allocation of the synthesized hid report. BUG: sleeping function called from invalid context at /home/peter/src/kernels/next/mm/slub.c:941 in_atomic(): 1, irqs_disabled(): 1, pid: 2095, name: Xorg INFO: lockdep is turned off. irq event stamp: 1502178 hardirqs last enabled at (1502177): [<ffffffff81785e55>] _raw_spin_unlock_irqrestore+0x65/0x80 hardirqs last disabled at (1502178): [<ffffffff8178632a>] common_interrupt+0x6a/0x6f softirqs last enabled at (1501802): [<ffffffff81051ed3>] __do_softirq+0x183/0x420 softirqs last disabled at (1501799): [<ffffffff81052315>] irq_exit+0xb5/0xc0 CPU: 3 PID: 2095 Comm: Xorg Not tainted 3.11-next-20130725-xeon+lockdep #20130725 Hardware name: Dell Inc. Precision WorkStation T5400 /0RW203, BIOS A11 04/30/2012 ffffffff81a662e0 ffff8802adcf9ca8 ffffffff8177c330 0000000000000000 ffff8802a76d2440 ffff8802adcf9cd8 ffffffff810867d0 ffff8802a7ac8000 0000000000000010 00000000ffffffff 00000000000000d0 ffff8802adcf9d38 Call Trace: [<ffffffff8177c330>] dump_stack+0x4f/0x84 [<ffffffff810867d0>] __might_sleep+0x140/0x1f0 [<ffffffff811ad93b>] __kmalloc+0x6b/0x2e0 [<ffffffffa026cb08>] ? hid_alloc_report_buf+0x28/0x30 [hid] [<ffffffffa026cb08>] hid_alloc_report_buf+0x28/0x30 [hid] [<ffffffffa00700b0>] logi_dj_ll_input_event+0xb0/0x1b0 [hid_logitech_dj] [<ffffffff815a559e>] input_handle_event+0x8e/0x540 [<ffffffff815a5aad>] ? input_inject_event+0x5d/0x220 [<ffffffff815a5c10>] input_inject_event+0x1c0/0x220 [<ffffffff815a5a94>] ? input_inject_event+0x44/0x220 [<ffffffff81181660>] ? might_fault+0xa0/0xb0 [<ffffffff81181617>] ? might_fault+0x57/0xb0 [<ffffffff815a909e>] evdev_write+0xde/0x160 [<ffffffff811c0ad8>] vfs_write+0xc8/0x1f0 [<ffffffff811c0fe5>] SyS_write+0x55/0xa0 [<ffffffff8178e682>] system_call_fastpath+0x16/0x1b Signed-off-by:
Peter Hurley <peter@hurleysoftware.com> Signed-off-by:
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- 29 Jul, 2013 1 commit
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Olivier Scherler authored
The driver currently only supports the Dual Arcade controller. It fixes the negative axis event values (the devices sends -2) to match the logical axis minimum of the HID report descriptor (the report announces -1). It is needed because hid-input discards out of bounds values. Signed-off-by:
Olivier Scherler <oscherler@ithink.ch> Signed-off-by:
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- 23 Jul, 2013 1 commit
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Jingoo Han authored
The usage of strict_strtoul() is not preferred, because strict_strtoul() is obsolete. Thus, kstrtoul() should be used. Signed-off-by:
Jingoo Han <jg1.han@samsung.com> Signed-off-by:
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- 22 Jul, 2013 2 commits
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Jiri Kosina authored
27ce4050 ("HID: fix data access in implement()") by mistake removed a setting of buffer size in hidp. Fix that by putting it back. Reported-by:
kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
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Jiri Kosina authored
implement() is setting bytes in LE data stream. In case the data is not aligned to 64bits, it reads past the allocated buffer. It doesn't really change any value there (it's properly bitmasked), but in case that this read past the boundary hits a page boundary, pagefault happens when accessing 64bits of 'x' in implement(), and kernel oopses. This happens much more often when numbered reports are in use, as the initial 8bit skip in the buffer makes the whole process work on values which are not aligned to 64bits. This problem dates back to attempts in 2005 and 2006 to make implement() and extract() as generic as possible, and even back then the problem was realized by Adam Kroperlin, but falsely assumed to be impossible to cause any harm: http://www.mail-archive.com/linux-usb-devel@lists.sourceforge.net/msg47690.html I have made several attempts at fixing it "on the spot" directly in implement(), but the results were horrible; the special casing for processing last 64bit chunk and switching to different math makes it unreadable mess. I therefore took a path to allocate a few bytes more which will never make it into final report, but are there as a cushion for all the 64bit math operations happening in implement() and extract(). All callers of hid_output_report() are converted at the same time to allocate the buffer by newly introduced hid_alloc_report_buf() helper. Bruno noticed that the whole raw_size test can be dropped as well, as hid_alloc_report_buf() makes sure that the buffer is always of a proper size. Reviewed-by:
Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by:
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- 15 Jul, 2013 1 commit
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Benjamin Tissoires authored
Genius Gx Imperator Keyboard presents the same problem in its report descriptors than Genius Gila Gaming Mouse. Use the same fixup for both. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=928561Reported-and-tested-by:
Honza Brazdil <jbrazdil@redhat.com> Signed-off-by:
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- 12 Jul, 2013 1 commit
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Paul Chavent authored
When device with the DELIMITER tag in its report descriptor is encountered during parsing, it's mistakenly immediately refused by HID core for no justifiable reason. [jkosina@suse.cz: polish changelog] Signed-off-by:
Paul Chavent <paul.chavent@onera.fr> Signed-off-by:
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- 04 Jul, 2013 21 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hidLinus Torvalds authored
Pull HID updates from Jiri Kosina: - HID battery handling cleanup by David Herrmann - ELO 4000/4500 driver, which has been finally ported to be proper HID driver by Jiri Slaby - ps3remote driver functionality is now provided by generic sony driver, by Jiri Kosina - PS2/3 Buzz controllers support, by Colin Leitner - rework of wiimote driver including full extensions hotpluggin support, sub-device modularization and speaker support by David Herrmann * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (55 commits) HID: wacom: Intuos4 battery charging changes HID: i2c-hid: support sending HID output reports using the output register HID: kye: Add report fixup for Genius Gila Gaming mouse HID: wiimote: support Nintendo Wii U Pro Controller Input: make gamepad API keycodes more clear input: document gamepad API and add extra keycodes HID: explain out-of-range check better HID: fix false positive out of range values HID: wiimote: fix coccinelle warnings HID: roccat: check cdev_add return value HID: fold ps3remote driver into generic Sony driver HID: hyperv: convert alloc+memcpy to memdup HID: core: fix reporting of raw events HID: wiimote: discard invalid EXT data reports HID: wiimote: fix classic controller parsing HID: wiimote: init EXT/MP during device detection HID: wiimote: fix DRM debug-attr to correctly parse input HID: wiimote: add MP quirks HID: wiimote: remove old static extension support HID: wiimote: add "bboard_calib" attribute ...
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git://neil.brown.name/mdLinus Torvalds authored
Pull md updates from NeilBrown: "Mostly fixes, with a few minor features (eg 'last_sync_action' sysfs file) A couple marked for -stable including one recent bug which causes a RAID10 reshape to complete without moving any data :-( A couple more bugfixes (at least) to come, but haven't confirmed the right solution yet." * tag 'md-3.11' of git://neil.brown.name/md: md/raid10: fix bug which causes all RAID10 reshapes to move no data. md/raid5: allow 5-device RAID6 to be reshaped to 4-device. md/raid10: fix two bugs affecting RAID10 reshape. md: remove doubled description for sync_max, merging it within sync_min/sync_max MD: Remember the last sync operation that was performed md: fix buglet in RAID5 -> RAID0 conversion. md/raid10: check In_sync flag in 'enough()'. md/raid10: locking changes for 'enough()'. md: replace strict_strto*() with kstrto*() md: Wait for md_check_recovery before attempting device removal. dm-raid: silence compiler warning on rebuilds_per_group. DM RAID: Fix raid_resume not reviving failed devices in all cases DM RAID: Break-up untidy function DM RAID: Add ability to restore transiently failed devices on resume
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Linus Torvalds authored
Merge Kconfig menu diet patches from Dave Hansen: "I think the "Kernel Hacking" menu has gotten a bit out of hand. It is over 120 lines long on my system with everything enabled and options are scattered around it haphazardly. http://sr71.net/~dave/linux/kconfig-horror.png Let's try to introduce some sanity. This set takes that 120 lines down to 55 and makes it vastly easier to find some things. It's a start. This set stands on its own, but there is plenty of room for follow-up patches. The arch-specific debug options still end up getting stuck in the top-level "kernel hacking" menu. OPTIMIZE_INLINING, for instance, could obviously go in to the "compiler options" menu, but the fact that it is defined in arch/ in a separate Kconfig file keeps it on its own for the moment. The Signed-off-by's in here look funky. I changed employers while working on this set, so I have signoffs from both email addresses" * emailed patches from Dave Hansen <dave@sr71.net>: hang and lockup detection menu kconfig: consolidate printk options group locking debugging options consolidate compilation option configs consolidate runtime testing configs order memory debugging Kconfig options consolidate per-arch stack overflow debugging options -
Dave Hansen authored
The hard/softlockup and hung-task entries take up 6 lines of screen real-estate when enabled. I bet folks don't mess with these _that_ often, so move them in a group down a level. Signed-off-by:
Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Dave Hansen authored
Same deal, take the printk-related things and hide them in a menu. This takes another 4 items out of the top-level menu. Signed-off-by:
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Dave Hansen authored
Original posting: http://lkml.kernel.org/r/20121214184208.D9E5804D@kernel.stglabs.ibm.com There are quite a few of these, and we want to make sure that there is one-stop-shopping for lock debugging. Signed-off-by:
Dave Hansen <dave@linux.vnet.ibm.com> Signed-off-by:
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Dave Hansen authored
Original Post: http://lkml.kernel.org/r/20121214184207.6E00DDEC@kernel.stglabs.ibm.com Again, trying to come up with some common themes of the stuff in the kernel hacking menu... There are quite a few options to tweak compilation in some way, or perform extra compile-time checks. Give them their own menu. The diff here looks a bit funny... makes it look like I'm moving debugfs even though I'm actually moving the options on either side of it. Signed-off-by:
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Dave Hansen authored
Original posting: http://lkml.kernel.org/r/20121214184206.FC11422F@kernel.stglabs.ibm.com These runtime tests are great, except that there are a lot of them, and they are very rarely needed. Give them their own menu so that only the folks who need them will have to go looking for them. Note that there are some other runtime tests that are not in here, like for RCU or locking. This menu should only be used for tests that do not have a more appropriate home. Signed-off-by:
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Dave Hansen authored
Original posting: http://lkml.kernel.org/r/20121214184203.37E6C724@kernel.stglabs.ibm.com There are a *LOT* of memory debugging options. They are just scattered all over the "Kernel Hacking" menu. Sure, "memory debugging" is a very vague term and it's going to be hard to make absolute rules about what goes in here, but this has to be better than what we had before. This does, however, leave out the architecture-specific memory debugging options (like x86's DEBUG_SET_MODULE_RONX). There would need to be some substantial changes to move those in here. Kconfig can not easily mix arch-specific and generic options together: it really requires a file per-architecture, and I think having an arch/foo/Kconfig.debug-memory might be taking things a bit too far Signed-off-by:
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Dave Hansen authored
Original posting: http://lkml.kernel.org/r/20121214184202.F54094D9@kernel.stglabs.ibm.com Several architectures have similar stack debugging config options. They all pretty much do the same thing, some with slightly differing help text. This patch changes the architectures to instead enable a Kconfig boolean, and then use that boolean in the generic Kconfig.debug to present the actual menu option. This removes a bunch of duplication and adds consistency across arches. Signed-off-by:
H. Peter Anvin <hpa@zytor.com> Reviewed-by:
James Hogan <james.hogan@imgtec.com> Acked-by: Chris Metcalf <cmetcalf@tilera.com> [for tile] Signed-off-by:
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Linus Torvalds authored
Merge hpfs patches from Mikulas Patocka. * emailed patches from Mikulas Patocka <mpatocka@artax.karlin.mff.cuni.cz>: hpfs: implement prefetch to improve performance hpfs: use mpage hpfs: better test for errors
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Mikulas Patocka authored
This patch implements prefetch to improve performance. It helps mostly when scanning the bitmaps to calculate free space. Signed-off-by:
Mikulas Patocka <mpatocka@artax.karlin.mff.cuni.cz> Signed-off-by:
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Mikulas Patocka authored
Use the mpage interface to improve performance. Signed-off-by:
Mikulas Patocka <mpatocka@redhat.com> Signed-off-by:
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Mikulas Patocka authored
The test if bitmap access is out of bound could errorneously pass if the device size is divisible by 16384 sectors and we are asking for one bitmap after the end. Check for invalid size in the superblock. Invalid size could cause integer overflows in the rest of the code. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpcLinus Torvalds authored
Pull powerpc updates from Ben Herrenschmidt: "This is the powerpc changes for the 3.11 merge window. In addition to the usual bug fixes and small updates, the main highlights are: - Support for transparent huge pages by Aneesh Kumar for 64-bit server processors. This allows the use of 16M pages as transparent huge pages on kernels compiled with a 64K base page size. - Base VFIO support for KVM on power by Alexey Kardashevskiy - Wiring up of our nvram to the pstore infrastructure, including putting compressed oopses in there by Aruna Balakrishnaiah - Move, rework and improve our "EEH" (basically PCI error handling and recovery) infrastructure. It is no longer specific to pseries but is now usable by the new "powernv" platform as well (no hypervisor) by Gavin Shan. - I fixed some bugs in our math-emu instruction decoding and made it usable to emulate some optional FP instructions on processors with hard FP that lack them (such as fsqrt on Freescale embedded processors). - Support for Power8 "Event Based Branch" facility by Michael Ellerman. This facility allows what is basically "userspace interrupts" for performance monitor events. - A bunch of Transactional Memory vs. Signals bug fixes and HW breakpoint/watchpoint fixes by Michael Neuling. And more ... I appologize in advance if I've failed to highlight something that somebody deemed worth it." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (156 commits) pstore: Add hsize argument in write_buf call of pstore_ftrace_call powerpc/fsl: add MPIC timer wakeup support powerpc/mpic: create mpic subsystem object powerpc/mpic: add global timer support powerpc/mpic: add irq_set_wake support powerpc/85xx: enable coreint for all the 64bit boards powerpc/8xx: Erroneous double irq_eoi() on CPM IRQ in MPC8xx powerpc/fsl: Enable CONFIG_E1000E in mpc85xx_smp_defconfig powerpc/mpic: Add get_version API both for internal and external use powerpc: Handle both new style and old style reserve maps powerpc/hw_brk: Fix off by one error when validating DAWR region end powerpc/pseries: Support compression of oops text via pstore powerpc/pseries: Re-organise the oops compression code pstore: Pass header size in the pstore write callback powerpc/powernv: Fix iommu initialization again powerpc/pseries: Inform the hypervisor we are using EBB regs powerpc/perf: Add power8 EBB support powerpc/perf: Core EBB support for 64-bit book3s powerpc/perf: Drop MMCRA from thread_struct powerpc/perf: Don't enable if we have zero events ... -
Jiri Kosina authored
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Przemo Firszt authored
Intuos4 WL is separately reporting power supply and battery charging status - now hid-wacom is using that information. Previously hid-wacom was wrongly treating "battery charging" bit as "power supply connected". Now it should report battery charging, battery discharging, battery full and power supply status. Intuos4 WL sends reports when is in use (obvious) and when unplugging power supply. If means that if the device is being charged, but it's not being used it will never report "battery full". The same problem happens after the device has been connected, but it's not in use - the battery/ac status will be incorrect. Currently there is no mechanism to ask the device to send a report containing battery/ac status. Signed-off-by:
Przemo Firszt <przemo@firszt.eu> Signed-off-by:
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Jiri Kosina authored
Conflicts: drivers/hid/hid-core.c
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Jiri Kosina authored
Merge branches 'for-3.11/battery', 'for-3.11/elo', 'for-3.11/holtek' and 'for-3.11/i2c-hid-fixed' into for-linus
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Andrew Duggan authored
The current i2c hid driver does not support sending HID output reports using the output register for devices which support receiving reports through this method. This patch determines which method to use to send output reports based on the value of wMaxOutputLength in the device's HID descriptor. Signed-off-by:
Andrew Duggan <aduggan@synaptics.com> Reviewed-by:
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NeilBrown authored
The recent comment: commit 7e83ccbe md/raid10: Allow skipping recovery when clean arrays are assembled Causes raid10 to skip a recovery in certain cases where it is safe to do so. Unfortunately it also causes a reshape to be skipped which is never safe. The result is that an attempt to reshape a RAID10 will appear to complete instantly, but no data will have been moves so the array will now contain garbage. (If nothing is written, you can recovery by simple performing the reverse reshape which will also complete instantly). Bug was introduced in 3.10, so this is suitable for 3.10-stable. Cc: stable@vger.kernel.org (3.10) Cc: Martin Wilck <mwilck@arcor.de> Signed-off-by:
NeilBrown <neilb@suse.de>
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