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Date: Thu, 6 Aug 2015 19:26:24 -0700 From: Dmitry Torokhov <dmitry.torokhov@...il.com> To: linux-input@...r.kernel.org Cc: Benson Leung <bleung@...omium.org>, linux-kernel@...r.kernel.org Subject: [PATCH] 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. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com> --- drivers/input/input.c | 10 ++++++++-- 1 file 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); } } -- 2.5.0.rc2.392.g76e840b -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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