From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> To: Bjorn Andersson <bjorn.andersson@linaro.org>, Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>, Abhinav Kumar <quic_abhinavk@quicinc.com> Cc: Stephen Boyd <swboyd@chromium.org>, David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH v2 2/3] drm/msm/dpu: fix error handling around dpu_hw_vbif_init Date: Tue, 19 Apr 2022 19:20:29 +0300 [thread overview] Message-ID: <20220419162030.1287562-3-dmitry.baryshkov@linaro.org> (raw) In-Reply-To: <20220419162030.1287562-1-dmitry.baryshkov@linaro.org> 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> --- 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 aadf032a190b..d38c55f9f003 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; -- 2.35.1
WARNING: multiple messages have this Message-ID (diff)
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> To: Bjorn Andersson <bjorn.andersson@linaro.org>, Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>, Abhinav Kumar <quic_abhinavk@quicinc.com> Cc: David Airlie <airlied@linux.ie>, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, Stephen Boyd <swboyd@chromium.org>, freedreno@lists.freedesktop.org Subject: [PATCH v2 2/3] drm/msm/dpu: fix error handling around dpu_hw_vbif_init Date: Tue, 19 Apr 2022 19:20:29 +0300 [thread overview] Message-ID: <20220419162030.1287562-3-dmitry.baryshkov@linaro.org> (raw) In-Reply-To: <20220419162030.1287562-1-dmitry.baryshkov@linaro.org> 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> --- 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 aadf032a190b..d38c55f9f003 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; -- 2.35.1
next prev parent reply other threads:[~2022-04-19 16:20 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-04-19 16:20 [PATCH v2 0/3] Simplify VBIF handling Dmitry Baryshkov 2022-04-19 16:20 ` Dmitry Baryshkov 2022-04-19 16:20 ` [PATCH v2 1/3] drm/msm/dpu: index dpu_kms->hw_vbif using vbif_idx Dmitry Baryshkov 2022-04-19 16:20 ` Dmitry Baryshkov 2022-04-25 19:36 ` Abhinav Kumar 2022-04-25 19:36 ` Abhinav Kumar 2022-04-19 16:20 ` Dmitry Baryshkov [this message] 2022-04-19 16:20 ` [PATCH v2 2/3] drm/msm/dpu: fix error handling around dpu_hw_vbif_init Dmitry Baryshkov 2022-04-19 16:20 ` [PATCH v2 3/3] drm/msm/dpu: drop VBIF indices Dmitry Baryshkov 2022-04-19 16:20 ` Dmitry Baryshkov
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