From: Hangyu Hua <hbh25y@gmail.com> To: robdclark@gmail.com, sean@poorly.run, quic_abhinavk@quicinc.com, airlied@linux.ie, daniel@ffwll.ch, dmitry.baryshkov@linaro.org, gbeeresh@codeaurora.org, sviau@codeaurora.org, wentaox@codeaurora.org Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Hangyu Hua <hbh25y@gmail.com> Subject: [PATCH] drm: msm: fix possible memory leak in mdp5_crtc_cursor_set() Date: Mon, 9 May 2022 14:11:25 +0800 [thread overview] Message-ID: <20220509061125.18585-1-hbh25y@gmail.com> (raw) drm_gem_object_lookup will call drm_gem_object_get inside. So cursor_bo needs to be put when msm_gem_get_and_pin_iova fails. Fixes: e172d10a9c4a ("drm/msm/mdp5: Add hardware cursor support") Signed-off-by: Hangyu Hua <hbh25y@gmail.com> --- drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c index b966cd69f99d..6a5f73f6a23b 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c @@ -991,8 +991,10 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc, ret = msm_gem_get_and_pin_iova(cursor_bo, kms->aspace, &mdp5_crtc->cursor.iova); - if (ret) + if (ret) { + drm_gem_object_put(cursor_bo); return -EINVAL; + } pm_runtime_get_sync(&pdev->dev); -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Hangyu Hua <hbh25y@gmail.com> To: robdclark@gmail.com, sean@poorly.run, quic_abhinavk@quicinc.com, airlied@linux.ie, daniel@ffwll.ch, dmitry.baryshkov@linaro.org, gbeeresh@codeaurora.org, sviau@codeaurora.org, wentaox@codeaurora.org Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, Hangyu Hua <hbh25y@gmail.com> Subject: [PATCH] drm: msm: fix possible memory leak in mdp5_crtc_cursor_set() Date: Mon, 9 May 2022 14:11:25 +0800 [thread overview] Message-ID: <20220509061125.18585-1-hbh25y@gmail.com> (raw) drm_gem_object_lookup will call drm_gem_object_get inside. So cursor_bo needs to be put when msm_gem_get_and_pin_iova fails. Fixes: e172d10a9c4a ("drm/msm/mdp5: Add hardware cursor support") Signed-off-by: Hangyu Hua <hbh25y@gmail.com> --- drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c index b966cd69f99d..6a5f73f6a23b 100644 --- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c +++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_crtc.c @@ -991,8 +991,10 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc, ret = msm_gem_get_and_pin_iova(cursor_bo, kms->aspace, &mdp5_crtc->cursor.iova); - if (ret) + if (ret) { + drm_gem_object_put(cursor_bo); return -EINVAL; + } pm_runtime_get_sync(&pdev->dev); -- 2.25.1
next reply other threads:[~2022-05-09 6:11 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-05-09 6:11 Hangyu Hua [this message] 2022-05-09 6:11 ` [PATCH] drm: msm: fix possible memory leak in mdp5_crtc_cursor_set() Hangyu Hua 2022-05-23 1:58 ` Hangyu Hua 2022-05-23 1:58 ` Hangyu Hua
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