user/sven/linux.git/drivers/input/joydev.c, branch v4.9.130

Input: joydev - recognize devices with Z axis as joysticks

2016-09-27T03:03:06Z

Current implementation of joydev's input_device_id table recognizes only devices with ABS_X, ABS_WHEEL or ABS_THROTTLE axes as joysticks. There are joystick devices that do not have those axes, for example TRC Rudder device. The device in question has ABS_Z, ABS_RX and ABS_RY axes causing it not being detected as joystick. This patch adds ABS_Z to the input_device_id list allowing devices with ABS_Z axis to be detected correctly. Signed-off-by: Ville Ranki Signed-off-by: Dmitry Torokhov

Input: joydev - fix possible ERR_PTR() dereferencing

2015-10-06T23:38:40Z

Commit 5702222c9a7a ("Input: joydev - use memdup_user() to duplicate memory from user-space") changed the kmalloc() and copy_from_user() with a single call to memdup_user() but wrongly used the same error path than the old code in which the buffer allocated by kmalloc() was freed if copy_from_user() failed. This is of course wrong since if memdup_user() fails, no memory was allocated and the error in the error-valued pointer should be returned. Fixes: 5702222c9a7a ("Input: joydev - use memdup_user() to duplicate memory from user-space") Reported-by: Dan Carpenter Signed-off-by: Javier Martinez Canillas Signed-off-by: Dmitry Torokhov

Input: joydev - use memdup_user() to duplicate memory from user-space

2015-10-02T18:44:16Z

The memdup_user() helper function can be used to duplicate a memory region from user-space to kernel-space. There is no need to open code the same logic using kmalloc() and copy_from_user() instead. This was found with make coccicheck that reported the following warning: drivers/input/joydev.c:447:10-17: WARNING opportunity for memdup_user drivers/input/joydev.c:483:10-17: WARNING opportunity for memdup_user Signed-off-by: Javier Martinez Canillas Signed-off-by: Dmitry Torokhov

Merge tag 'v4.2-rc3' into next

2015-07-20T17:08:17Z

Sync up with Linux 4.2-rc3 to bring in infrastructure (OF) pieces.

Input: joydev - use for_each_set_bit where appropriate

2015-07-09T04:50:58Z

Use for_each_set_bit to check for set bits in bitmap as it is more efficient than checking individual bits. Signed-off-by: Anshul Garg Signed-off-by: Dmitry Torokhov

Input: joydev - don't classify the vmmouse as a joystick

2015-05-21T22:58:27Z

Joydev is currently thinking some absolute mice are joystick, and that messes up games in VMware guests, as the cursor typically gets stuck in the top left corner. Try to detect the event signature of a VMmouse input device and back off for such devices. We're still incorrectly detecting, for example, the VMware absolute USB mouse as a joystick, but adding an event signature matching also that device would be considerably more risky, so defer that to a later merge window. Signed-off-by: Thomas Hellstrom Signed-off-by: Dmitry Torokhov

Input: fix use-after-free introduced with dynamic minor changes

2012-10-22T05:50:37Z

Commit 7f8d4cad1e4e ("Input: extend the number of event (and other) devices") made evdev, joydev and mousedev to embed struct cdev into their respective structures representing input devices. Unfortunately character device structure may outlive the parent structure unless we do not set it up as parent of character device so that it will stay pinned until character device is freed. Also, now that parent structure is pinned while character device exists we do not need to pin and unpin it every time user opens or closes it. Reported-by: Dave Jones Signed-off-by: Dmitry Torokhov Acked-by: Al Viro Signed-off-by: Linus Torvalds

Input: extend the number of event (and other) devices

2012-10-08T16:37:55Z

Extend the amount of character devices, such as eventX, mouseX and jsX, from a hard limit of 32 per input handler to about 1024 shared across all handlers. To be compatible with legacy installations input handlers will start creating char devices with minors in their legacy range, however once legacy range is exhausted they will start allocating minors from the dynamic range 256-1024. Reviewed-by: David Herrmann Signed-off-by: Dmitry Torokhov

Input: random formatting fixes

2012-08-22T05:29:49Z

Fixes for some coding style issues reported by scripts/checkpatch.pl utility. Signed-off-by: Baodong Chen Signed-off-by: Dmitry Torokhov

Remove all #inclusions of asm/system.h

2012-03-28T17:30:03Z

Remove all #inclusions of asm/system.h preparatory to splitting and killing it. Performed with the following command: perl -p -i -e 's!^#\s*include\s*.*\n!!' `grep -Irl '^#\s*include\s*' *` Signed-off-by: David Howells