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drm/msm/dpu: fix error handling around dpu_hw_vbif_init

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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().

Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/489570/
Link: https://lore.kernel.org/r/20220615125703.24647-2-dmitry.baryshkov@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Dmitry Baryshkov
2022-06-15 15:57:02 +03:00
committed by Rob Clark
parent 7538f80ae0
commit bc778bb984
1 changed files with 1 additions and 3 deletions
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4
drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c
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@@ -1110,10 +1110,8 @@ 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;