[PATCH 4.7 118/143] Input: i8042 - set up shared ps2_cmd_mutex for AUX ports
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2016-09-05 16:56:19
Also in:
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4.7-stable review patch. If anyone has any objections, please let me know.
------------------
From: Dmitry Torokhov <dmitry.torokhov@gmail.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 <redacted>
Tested-by: Bruno Wolff III <redacted>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/input/serio/i8042.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c@@ -1305,6 +1305,7 @@ 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) {