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Message-ID: <lsq.1479082460.906183311@decadent.org.uk>
Date: Mon, 14 Nov 2016 00:14:20 +0000
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, "Bruno Wolff III" <bruno@...ff.to>,
"Dmitry Torokhov" <dmitry.torokhov@...il.com>
Subject: [PATCH 3.16 198/346] Input: i8042 - set up shared ps2_cmd_mutex
for AUX ports
3.16.39-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Dmitry Torokhov <dmitry.torokhov@...il.com>
commit 47af45d684b5f3ae000ad448db02ce4f13f73273 upstream.
The commit 4097461897df ("Input: i8042 - break load dependency ...")
correctly set up ps2_cmd_mutex pointer for the KBD port but forgot to do
the same for AUX port(s), which results in communication on KBD and AUX
ports to clash with each other.
Fixes: 4097461897df ("Input: i8042 - break load dependency ...")
Reported-by: Bruno Wolff III <bruno@...ff.to>
Tested-by: Bruno Wolff III <bruno@...ff.to>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
drivers/input/serio/i8042.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -1258,6 +1258,7 @@ static int __init i8042_create_aux_port(
serio->write = i8042_aux_write;
serio->start = i8042_start;
serio->stop = i8042_stop;
+ serio->ps2_cmd_mutex = &i8042_mutex;
serio->port_data = port;
serio->dev.parent = &i8042_platform_device->dev;
if (idx < 0) {
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