Zhang Bo ea4f7bd2ac 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>

2018-02-09 16:15:45 -08:00

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adc-keys.c

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adp5520-keys.c

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adp5588-keys.c

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adp5589-keys.c

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amikbd.c

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atakbd.c

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atkbd.c

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bcm-keypad.c

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bf54x-keys.c

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cap11xx.c

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clps711x-keypad.c

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cros_ec_keyb.c

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davinci_keyscan.c

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dlink-dir685-touchkeys.c

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ep93xx_keypad.c

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goldfish_events.c

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gpio_keys_polled.c

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gpio_keys.c

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hil_kbd.c

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hilkbd.c

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hpps2atkbd.h

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imx_keypad.c

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ipaq-micro-keys.c

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jornada680_kbd.c

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jornada720_kbd.c

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Kconfig

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lkkbd.c

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lm8323.c

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lm8333.c

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locomokbd.c

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lpc32xx-keys.c

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Makefile

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maple_keyb.c

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matrix_keypad.c

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max7359_keypad.c

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mcs_touchkey.c

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mpr121_touchkey.c

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newtonkbd.c

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nomadik-ske-keypad.c

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nspire-keypad.c

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omap4-keypad.c

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omap-keypad.c

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opencores-kbd.c

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pmic8xxx-keypad.c

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pxa27x_keypad.c

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pxa930_rotary.c

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qt1070.c

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qt2160.c

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samsung-keypad.c

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sh_keysc.c

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snvs_pwrkey.c

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spear-keyboard.c

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st-keyscan.c

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stmpe-keypad.c

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stowaway.c

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sun4i-lradc-keys.c

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sunkbd.c

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tc3589x-keypad.c

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tca6416-keypad.c

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tca8418_keypad.c

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tegra-kbc.c

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tm2-touchkey.c

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twl4030_keypad.c

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w90p910_keypad.c

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xtkbd.c

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