From: Dmitry Torokhov <dtor_core@ameritech.net>
psmouse - if keyboard controller reports a timeout or a parity error do not
try to process the byte, log the problem and drop it early.
---
drivers/input/mouse/psmouse-base.c | 7 +++++++
1 files changed, 7 insertions(+)
diff -puN drivers/input/mouse/psmouse-base.c~psmouse-drop-timed-out-bytes drivers/input/mouse/psmouse-base.c
--- 25/drivers/input/mouse/psmouse-base.c~psmouse-drop-timed-out-bytes 2004-01-21 11:59:03.000000000 -0800
+++ 25-akpm/drivers/input/mouse/psmouse-base.c 2004-01-21 11:59:03.000000000 -0800
@@ -134,6 +134,13 @@ static irqreturn_t psmouse_interrupt(str
goto out;
}
+ if (flags & (SERIO_PARITY|SERIO_TIMEOUT)) {
+ printk(KERN_WARNING "psmouse.c: bad data from KBC -%s%s\n",
+ flags & SERIO_TIMEOUT ? " timeout" : "",
+ flags & SERIO_PARITY ? " bad parity" : "");
+ goto out;
+ }
+
if (psmouse->acking) {
switch (data) {
case PSMOUSE_RET_ACK:
_