From: Terje Bergstrom <tbergstrom@nvidia.com>
Date: Wed, 29 May 2013 10:26:02 +0000 (+0300)
Subject: gpu: host1x: Check INCR opcode correctly
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=64c173d3a2bb367c901f1f0a66c1d4e338d8cb2c;p=linux-beck.git

gpu: host1x: Check INCR opcode correctly

The firewall code used a wrong loop condition (pointer to a
structure) while checking INCR opcode. This patch fixes the code to
use correct loop condition (number of words remaining).

Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---

diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index f665d679031c..2974ac8d70a7 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -330,7 +330,7 @@ static int check_incr(struct host1x_firewall *fw)
 	u32 count = fw->count;
 	u32 reg = fw->reg;
 
-	while (fw) {
+	while (count) {
 		if (fw->words == 0)
 			return -EINVAL;