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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2015-08-06 19:15:30 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2015-08-07 14:55:38 -0700
commit00159f19a5057cb779146afce1cceede692af346 (patch)
tree088387908b23ecf425fde41f80720823598488fe /drivers/input/input.c
parent6fd3850227961d70594acd45d146ad28367415b5 (diff)
downloadop-kernel-dev-00159f19a5057cb779146afce1cceede692af346.zip
op-kernel-dev-00159f19a5057cb779146afce1cceede692af346.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>
Diffstat (limited to 'drivers/input/input.c')
-rw-r--r--drivers/input/input.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 78d2499..5391abd 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -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);
+ need_sync = true;
+ }
+
+ if (need_sync)
+ input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
+
memset(dev->key, 0, sizeof(dev->key));
- input_pass_event(dev, EV_SYN, SYN_REPORT, 1);
}
}
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