From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 31 Jan 2018 14:03:53 +0000 (+0100)
Subject: 3.18-stable patches
X-Git-Tag: v4.4.115~31
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=034a07e6639407ef37f2c569990d6cc3c0274a5b;p=thirdparty%2Fkernel%2Fstable-queue.git

3.18-stable patches

added patches:
	input-do-not-emit-unneeded-ev_syn-when-suspending.patch
---

diff --git a/queue-3.18/input-do-not-emit-unneeded-ev_syn-when-suspending.patch b/queue-3.18/input-do-not-emit-unneeded-ev_syn-when-suspending.patch
new file mode 100644
index 00000000000..13dae5ae863
--- /dev/null
+++ b/queue-3.18/input-do-not-emit-unneeded-ev_syn-when-suspending.patch
@@ -0,0 +1,44 @@
+From 00159f19a5057cb779146afce1cceede692af346 Mon Sep 17 00:00:00 2001
+From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
+Date: Thu, 6 Aug 2015 19:15:30 -0700
+Subject: Input: do not emit unneeded EV_SYN when suspending
+
+From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
+
+commit 00159f19a5057cb779146afce1cceede692af346 upstream.
+
+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>
+Signed-off-by: Bo Hu <bohu@google.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+diff --git a/drivers/input/input.c b/drivers/input/input.c
+index 78d24990a816..5391abd28b27 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);
+ 	}
+ }
+ 
diff --git a/queue-3.18/series b/queue-3.18/series
new file mode 100644
index 00000000000..4532d9dd3f1
--- /dev/null
+++ b/queue-3.18/series
@@ -0,0 +1 @@
+input-do-not-emit-unneeded-ev_syn-when-suspending.patch