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Input: ALPS - fix command mode check 

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@gmail.com>
Tested-by: Dave Turvene <dturvene@dahetral.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Kevin Cernekee 2013-02-13 22:24:22 -08:00 committed by Dmitry Torokhov
parent f673ceb11b
commit 56fd340ebb
1 changed files with 1 additions and 1 deletions
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2
drivers/input/mouse/alps.c
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@ -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;