[Raring][PATCH 09/13] Input: ALPS - fix command mode check

[James M Leddy]

From: Kevin Cernekee <cernekee at gmail.com>

Pinnacle class devices should return "88 07 xx" or "88 08 xx" when
entering command mode.  If either the first byte or the second byte is
invalid, return an error.

Signed-off-by: Kevin Cernekee <cernekee at gmail.com>
Tested-by: Dave Turvene <dturvene at dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov at gmail.com>
(cherry picked from commit 56fd340ebb533cb45c5eaf350cf889c43c5911e6)
---
 drivers/input/mouse/alps.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index eafeae2..bfc1938 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -983,7 +983,7 @@ static int alps_enter_command_mode(struct psmouse *psmouse,
 		return -1;
 	}
 
-	if (param[0] != 0x88 && param[1] != 0x07) {
+	if (param[0] != 0x88 || (param[1] != 0x07 && param[1] != 0x08)) {
 		psmouse_dbg(psmouse,
 			    "unknown response while entering command mode\n");
 		return -1;
-- 
1.7.9.5