kernel/linux.git/drivers/input/ff-memless.c, branch v7.2-rc1

Input: stop force-feedback timer when unregistering input devices

2026-06-23T05:33:01+00:00

Memoryless force-feedback devices use a timer to manage playback of effects. When a driver for such a device is unbound (or the device is unregistered for other reasons), the driver typically frees its private data synchronously. However, the input_dev structure (and its associated force-feedback structures, including the timer) is only freed when the last user closes the corresponding device node. If userspace keeps the device node open while the device is unregistered (e.g., during driver unbind), the force-feedback timer can still fire after the driver's private data has been freed. Introduce a new 'stop' callback to struct ff_device, and call it from input_unregister_device() before the device is deleted. Implement this callback for memoryless devices and synchronously shut down the timer to ensure it is stopped and cannot be rearmed once unregistration happens. Assisted-by: Gemini:gemini-3.1-pro Signed-off-by: Dmitry Torokhov

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

Input: include export.h in modules using EXPORT_SYMBOL*()

2025-08-21T19:00:59+00:00

A number of modules in the input subsystem use EXPORT_SYMBOL() and friends without explicitly including the corresponding header . While the build currently succeeds due to this header being pulled in transitively, this is not guaranteed to be the case in the future. Let's add the explicit include to make the dependencies clear and prevent future build breakage. Signed-off-by: Dmitry Torokhov

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08T07:07:37+00:00

Move this API to the canonical timer_*() namespace. [ tglx: Redone against pre rc1 ] Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05T08:30:12+00:00

timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree over and remove the historical wrapper inlines. Conversion was done with coccinelle plus manual fixups where necessary. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar

Input: ff-memless - make use of __free() cleanup facility

2024-12-24T06:53:45+00:00

Annotate allocated memory with __free(kfree) to simplify the code and make sure memory is released appropriately. Tested-by: Marek Szyprowski Link: https://lore.kernel.org/r/20241107071538.195340-5-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

Input: ff-memless - convert locking to guard notation

2024-12-24T06:53:44+00:00

Use guard() notation instead of explicitly acquiring and releasing spinlocks to simplify the code and ensure that all locks are released. Link: https://lore.kernel.org/r/20241107071538.195340-4-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

input: drop empty comment blocks

2022-09-29T23:25:42+00:00

Commit 1a59d1b8e05e ("treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156") has left some empty comment blocks. Remove them to save a few lines of code. Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/26a2b905b259bfffaf2de5b26f2007b8606970ed.1664478665.git.christophe.jaillet@wanadoo.fr Signed-off-by: Dmitry Torokhov

Input: ff-memless - kill timer in destroy()

2019-11-15T19:45:03+00:00

No timer must be left running when the device goes away. Signed-off-by: Oliver Neukum Reported-and-tested-by: syzbot+b6c55daa701fc389e286@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/1573726121.17351.3.camel@suse.com Signed-off-by: Dmitry Torokhov