[PATCH 2/5] drm/msm: Fix IS_ERR() vs NULL check in a5xx_submit_in_rb()

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The msm_gem_get_vaddr() returns an ERR_PTR() on failure, we should
use IS_ERR() to check the return value.

Fixes: 6a8bd08d0465 ("drm/msm: add sudo flag to submit ioctl")
Signed-off-by: Gaosheng Cui <cuigaosheng1@xxxxxxxxxx>
---
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index 3c537c0016fa..0abc802e8d5f 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -89,7 +89,7 @@ static void a5xx_submit_in_rb(struct msm_gpu *gpu, struct msm_gem_submit *submit
 			 * since we've already mapped it once in
 			 * submit_reloc()
 			 */
-			if (WARN_ON(!ptr))
+			if (WARN_ON(IS_ERR(ptr)))
 				return;
 
 			for (i = 0; i < dwords; i++) {
-- 
2.25.1




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