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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-08-06 19:15:30 -0700 |
|---|---|---|
| committer | guoyin.chen <guoyin.chen@freescale.com> | 2015-11-10 15:12:47 +0800 |
| commit | 3efd56a6eb545e84e8d80bada802719db4c105ce (patch) | |
| tree | 8c4c16319937aeea1d6df5f34253c80a58e6ecee | |
| parent | 98b6e698f3be3d2d1613eda1bbbbc83ce4547601 (diff) | |
| download | freescale-3efd56a6eb545e84e8d80bada802719db4c105ce.tar.gz | |
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: Benson Leung <bleung@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Conflicts:
drivers/input/input.c
| -rw-r--r-- | drivers/input/input.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c index 29ca0bb4f56..087255a452c 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -667,6 +667,7 @@ 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)) { @@ -674,9 +675,11 @@ static void input_dev_release_keys(struct input_dev *dev) if (is_event_supported(code, dev->keybit, KEY_MAX) && __test_and_clear_bit(code, dev->key)) { input_pass_event(dev, EV_KEY, code, 0); + need_sync = true; } } - input_pass_event(dev, EV_SYN, SYN_REPORT, 1); + if (need_sync) + input_pass_event(dev, EV_SYN, SYN_REPORT, 1); } } |