On 2/16/2022 7:45 PM, Dmitry Baryshkov wrote:
Using IS_ERR_OR_NULL() together with PTR_ERR() is a typical mistake. If
the value is NULL, then the function will return 0 instead of a proper
return code. Moreover dpu_hw_vbif_init() function can not return NULL.
So, replace corresponding IS_ERR_OR_NULL() call with IS_ERR().
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
index 81a35c8d62e7..f8f1bf3b511d 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
@@ -1102,10 +1102,8 @@ static int dpu_kms_hw_init(struct msm_kms *kms)
dpu_kms->hw_vbif[vbif_idx] = dpu_hw_vbif_init(vbif_idx,
dpu_kms->vbif[vbif_idx], dpu_kms->catalog);
- if (IS_ERR_OR_NULL(dpu_kms->hw_vbif[vbif_idx])) {
+ if (IS_ERR(dpu_kms->hw_vbif[vbif_idx])) {
rc = PTR_ERR(dpu_kms->hw_vbif[vbif_idx]);
- if (!dpu_kms->hw_vbif[vbif_idx])
- rc = -EINVAL;
DPU_ERROR("failed to init vbif %d: %d\n", vbif_idx, rc);
dpu_kms->hw_vbif[vbif_idx] = NULL;
goto power_error;
