msm: kgsl: Fix z180 error code on issueibcmds

Change-Id: I7e7149fd165fd12856bf3b3529f8f78aedd9d810
Signed-off-by: Carter Cooper <ccooper@codeaurora.org>
diff --git a/drivers/gpu/msm/z180.c b/drivers/gpu/msm/z180.c
index 6cd57b3..9e14247 100644
--- a/drivers/gpu/msm/z180.c
+++ b/drivers/gpu/msm/z180.c
@@ -411,7 +411,7 @@
 	unsigned int sizedwords;
 
 	if (device->state & KGSL_STATE_HUNG) {
-		return -EINVAL;
+		result = -EINVAL;
 		goto error;
 	}
 	if (numibs != 1) {