From: Dmitry Baryshkov Date: Wed, 15 Jun 2022 12:57:02 +0000 (+0300) Subject: drm/msm/dpu: fix error handling around dpu_hw_vbif_init X-Git-Tag: v6.1-rc5~94^2~3^2~57 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bc778bb9841a6527d7fdd23062515e6d4a1b2874;p=platform%2Fkernel%2Flinux-starfive.git drm/msm/dpu: fix error handling around dpu_hw_vbif_init 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 Signed-off-by: Dmitry Baryshkov 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 Signed-off-by: Rob Clark --- diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index c99c7a218ddb..ffdb4fcd3bcc 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -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;