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| author | Oliver Neukum <oneukum@suse.com> | 2019-11-15 22:35:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-11-20 20:45:14 +0300 |
| commit | c02230815282a436366d3d0d6de6d2636dd71b74 (patch) | |
| tree | b254f2d9986d29424f59724466f264c84f23e2ab /drivers/input | |
| parent | 47d06a15f25a5b052204a5597fd0f59aa08329f3 (diff) | |
| download | linux-c02230815282a436366d3d0d6de6d2636dd71b74.tar.xz | |
Input: ff-memless - kill timer in destroy()
commit fa3a5a1880c91bb92594ad42dfe9eedad7996b86 upstream.
No timer must be left running when the device goes away.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
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 <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/ff-memless.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c index 2743ed4656e4..1cd23bf3236c 100644 --- a/drivers/input/ff-memless.c +++ b/drivers/input/ff-memless.c @@ -501,6 +501,15 @@ static void ml_ff_destroy(struct ff_device *ff) { struct ml_device *ml = ff->private; + /* + * Even though we stop all playing effects when tearing down + * an input device (via input_device_flush() that calls into + * input_ff_flush() that stops and erases all effects), we + * do not actually stop the timer, and therefore we should + * do it here. + */ + del_timer_sync(&ml->timer); + kfree(ml->private); } |