From: Andres Salomon <dilinger@queued.net>
Date: Tue, 11 Nov 2008 14:52:21 +0000 (-0500)
Subject: Input: psmouse - fix incorrect validate_byte check in OLPC protocol
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=5fb17fd9a2d05be77be91369aa2f7b0db42fc8b4;p=deliverable%2Flinux.git

Input: psmouse - fix incorrect validate_byte check in OLPC protocol

The validate_byte check logic was backwards; it should return true for
an *invalid* packet.  Thanks to Jeremy Katz for spotting this one.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
---

diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index e82d34201e97..88f04bf2ad6c 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -125,7 +125,7 @@ static void hgpk_spewing_hack(struct psmouse *psmouse,
  */
 static int hgpk_validate_byte(unsigned char *packet)
 {
-	return (packet[0] & 0x0C) == 0x08;
+	return (packet[0] & 0x0C) != 0x08;
 }
 
 static void hgpk_process_packet(struct psmouse *psmouse)