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Commit 00159f19 authored by Dmitry Torokhov's avatar Dmitry Torokhov
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Input: do not emit unneeded EV_SYN when suspending 



Do not emit EV_SYN/SYN_REPORT on suspend if there were no keys that are
still pressed as we are suspending the device (and in all other cases when
input core is forcibly releasing keys via input_dev_release_keys() call).

Reviewed-by: default avatarBenson Leung <bleung@chromium.org>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 6fd38502

drivers/input/input.c

+8 −2
Original line number Diff line number Diff line
@@ -674,13 +674,19 @@ EXPORT_SYMBOL(input_close_device); 
 */

static void input_dev_release_keys(struct input_dev *dev)

{

	bool need_sync = false;

	int code;



	if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) {

		for_each_set_bit(code, dev->key, KEY_CNT)

		for_each_set_bit(code, dev->key, KEY_CNT) {

			input_pass_event(dev, EV_KEY, code, 0);

		memset(dev->key, 0, sizeof(dev->key));

			need_sync = true;

		}



		if (need_sync)

			input_pass_event(dev, EV_SYN, SYN_REPORT, 1);



		memset(dev->key, 0, sizeof(dev->key));

	}

}