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| author | Zhang Bo <zbsdta@126.com> | 2018-02-05 23:56:21 +0100 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-02-10 01:15:45 +0100 |
| commit | ea4f7bd2aca9f68470e9aac0fc9432fd180b1fe7 (patch) | |
| tree | 0853e555970f6310b792cc009e42d33697a34f89 /drivers/input/mouse/synaptics.c | |
| parent | Input: mms114 - add SPDX identifier (diff) | |
| download | linux-ea4f7bd2aca9f68470e9aac0fc9432fd180b1fe7.tar.xz linux-ea4f7bd2aca9f68470e9aac0fc9432fd180b1fe7.zip | |
Input: matrix_keypad - fix race when disabling interrupts
If matrix_keypad_stop() is executing and the keypad interrupt is triggered,
disable_row_irqs() may be called by both matrix_keypad_interrupt() and
matrix_keypad_stop() at the same time, causing interrupts to be disabled
twice and the keypad being "stuck" after resuming.
Take lock when setting keypad->stopped to ensure that ISR will not race
with matrix_keypad_stop() disabling interrupts.
Signed-off-by: Zhang Bo <zbsdta@126.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions