[PATCH 4.14 01/54] media: rc: mce_kbd decoder: fix stuck keys

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4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sean Young <sean@xxxxxxxx>

commit 63039c29f7a4ce8a8bd165173840543c0098d7b0 upstream.

The MCE Remote sends a 0 scancode when keys are released. If this is not
received or decoded, then keys can get "stuck"; the keyup event is not
sent since the input_sync() is missing from the timeout handler.

Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Sean Young <sean@xxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/media/rc/ir-mce_kbd-decoder.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/media/rc/ir-mce_kbd-decoder.c
+++ b/drivers/media/rc/ir-mce_kbd-decoder.c
@@ -130,6 +130,8 @@ static void mce_kbd_rx_timeout(unsigned
 
 	for (i = 0; i < MCIR2_MASK_KEYS_START; i++)
 		input_report_key(mce_kbd->idev, kbd_keycodes[i], 0);
+
+	input_sync(mce_kbd->idev);
 }
 
 static enum mce_kbd_mode mce_kbd_mode(struct mce_kbd_dec *data)






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