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 f665d679031c167c9ef9aa037c636ea64f3dcef2..2974ac8d70a790b69f21781e9465b951b9f84e16 100644 (file)
--- 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;