Re: [PATCH 2/2] Psmouse log and discard timed out bytes

[Dmitry Torokhov]

===================================================================


ChangeSet@xxxxxx, 2004-01-10 02:52:04-05:00, dtor_core@xxxxxxxxxxxxx
  Input: 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.


 psmouse-base.c |    7 +++++++
 1 files changed, 7 insertions(+)


===================================================================



diff -Nru a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
--- a/drivers/input/mouse/psmouse-base.c	Sat Jan 10 03:23:08 2004
+++ b/drivers/input/mouse/psmouse-base.c	Sat Jan 10 03:23:08 2004
@@ -121,6 +121,13 @@
 	if (psmouse->state == PSMOUSE_IGNORE)
 		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:
-
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