kernel/linux.git/drivers/input/misc/cm109.c, branch v7.0-rc7

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: cm109 - use guard notation when acquiring mutex and spinlock

2024-10-03T16:10:35+00:00

Using guard notation makes the code more compact and error handling more robust by ensuring that locks are released in all code paths when control leaves critical section. Reviewed-by: Javier Carrasco Link: https://lore.kernel.org/r/20240904044244.1042174-4-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov

Input: remove third argument of usb_maxpacket()

2022-04-23T08:33:53+00:00

The third argument of usb_maxpacket(): in_out has been deprecated because it could be derived from the second argument (e.g. using usb_pipeout(pipe)). N.B. function usb_maxpacket() was made variadic to accommodate the transition from the old prototype with three arguments to the new one with only two arguments (so that no renaming is needed). The variadic argument is to be removed once all users of usb_maxpacket() get migrated. CC: Ville Syrjala CC: Dmitry Torokhov CC: Henk Vergonet Signed-off-by: Vincent Mailhol Link: https://lore.kernel.org/r/20220317035514.6378-4-mailhol.vincent@wanadoo.fr Signed-off-by: Greg Kroah-Hartman

Input: cm109 - do not stomp on control URB

2020-12-11T21:17:36+00:00

We need to make sure we are not stomping on the control URB that was issued when opening the device when attempting to toggle buzzer. To do that we need to mark it as pending in cm109_open(). Reported-and-tested-by: syzbot+150f793ac5bc18eee150@syzkaller.appspotmail.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov

Input: cm109 - remove needless check before usb_free_coherent()

2020-07-07T18:01:37+00:00

usb_free_coherent() is safe with NULL addr and this check is not required. Signed-off-by: Xu Wang Link: https://lore.kernel.org/r/20200707030905.3123-1-vulab@iscas.ac.cn Signed-off-by: Dmitry Torokhov

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372

2019-06-05T15:37:10+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 135 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081036.435762997@linutronix.de Signed-off-by: Greg Kroah-Hartman

Input: cm109 - validate number of endpoints before using them

2017-03-16T20:56:50+00:00

Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer should a malicious device lack endpoints. Fixes: c04148f915e5 ("Input: add driver for USB VoIP phones with CM109...") Signed-off-by: Johan Hovold Cc: stable@vger.kernel.org # 2.6.28 Signed-off-by: Dmitry Torokhov

Input: cm109 - spin_lock in complete() cleanup

2016-05-04T23:01:42+00:00

Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). Signed-off-by: Ming Lei Signed-off-by: Dmitry Torokhov

Input: cm109 - fix handling of volume and mute buttons

2016-05-04T23:00:54+00:00

The CM109 driver reported key press events of volume up / down and record / playback mute buttons, but no release events. Report those events properly by handling volume and mute keys seperately. For the record and playback mute buttons, only presses are registered by the CM109, therefore simulate press-n-release. This fixes the volume control buttons of various USB headsets. Signed-off-by: Florian Euchner Signed-off-by: Dmitry Torokhov