diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index f665d679031c167c9ef9aa037c636ea64f3dcef2..2974ac8d70a790b69f21781e9465b951b9f84e16 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;