disable_irq() after request_irq() still has a time gap in which interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will disable IRQ auto-enable because of requesting.
Signed-off-by: Barry Song song.bao.hua@hisilicon.com --- drivers/input/keyboard/tca6416-keypad.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/input/keyboard/tca6416-keypad.c b/drivers/input/keyboard/tca6416-keypad.c index 9b0f9665dcb0..2a9755910065 100644 --- a/drivers/input/keyboard/tca6416-keypad.c +++ b/drivers/input/keyboard/tca6416-keypad.c @@ -274,7 +274,7 @@ static int tca6416_keypad_probe(struct i2c_client *client, error = request_threaded_irq(chip->irqnum, NULL, tca6416_keys_isr, IRQF_TRIGGER_FALLING | - IRQF_ONESHOT, + IRQF_ONESHOT | IRQF_NO_AUTOEN, "tca6416-keypad", chip); if (error) { dev_dbg(&client->dev, @@ -282,7 +282,6 @@ static int tca6416_keypad_probe(struct i2c_client *client, chip->irqnum, error); goto fail1; } - disable_irq(chip->irqnum); }
error = input_register_device(input);