From: Akhil P Oommen <akhilpo@oss.qualcomm.com>
To: Rob Clark <robin.clark@oss.qualcomm.com>,
Sean Paul <sean@poorly.run>,
Konrad Dybcio <konradybcio@kernel.org>,
Dmitry Baryshkov <lumag@kernel.org>,
Abhinav Kumar <abhinav.kumar@linux.dev>,
Jessica Zhang <jesszhan0024@gmail.com>,
Marijn Suijten <marijn.suijten@somainline.org>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Neil Armstrong <neil.armstrong@linaro.org>
Cc: linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org,
freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org,
Akhil P Oommen <akhilpo@oss.qualcomm.com>
Subject: [PATCH RFT 3/5] drm/msm/adreno: Fix invalid drvdata typecast in adreno_remove()
Date: Wed, 13 May 2026 02:22:58 +0530 [thread overview]
Message-ID: <20260513-gmu-sync-state-fix-v1-3-6e33e6aa9b4f@oss.qualcomm.com> (raw)
In-Reply-To: <20260513-gmu-sync-state-fix-v1-0-6e33e6aa9b4f@oss.qualcomm.com>
adreno_remove() decides between component_del() and msm_gpu_remove()
based on platform_get_drvdata(pdev), interpreted as a struct
msm_drm_private *. That dereference is wrong because msm_gpu_init()
overwrites the GPU pdev's drvdata with adreno_smmu_priv pointer.
Fix this by using msm_gpu_use_separate_drm_dev() instead of relying on
drvdata.
Fixes: 643515a9cd09 ("drm/msm: rework binding of Imageon GPUs")
Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com>
---
drivers/gpu/drm/msm/adreno/adreno_device.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 3052f3e36de0..66953e551d86 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -279,12 +279,10 @@ static int adreno_probe(struct platform_device *pdev)
static void adreno_remove(struct platform_device *pdev)
{
- struct msm_drm_private *priv = platform_get_drvdata(pdev);
-
- if (priv->kms_init)
- component_del(&pdev->dev, &a3xx_ops);
- else
+ if (msm_gpu_use_separate_drm_dev(pdev))
msm_gpu_remove(pdev, &a3xx_ops);
+ else
+ component_del(&pdev->dev, &a3xx_ops);
}
static void adreno_shutdown(struct platform_device *pdev)
--
2.51.0
next prev parent reply other threads:[~2026-05-12 20:53 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-12 20:52 [PATCH RFT 0/5] drm/msm: Attach a driver to GMU Akhil P Oommen
2026-05-12 20:52 ` [PATCH RFT 1/5] drm/msm/adreno/a6xx: Mark cxpd device_link as stateless Akhil P Oommen
2026-05-13 0:56 ` Dmitry Baryshkov
2026-05-16 2:47 ` Claude review: " Claude Code Review Bot
2026-05-12 20:52 ` [PATCH RFT 2/5] drm/msm: Centralize the standalone drm device check for GPU Akhil P Oommen
2026-05-13 5:41 ` Dmitry Baryshkov
2026-05-13 21:10 ` Akhil P Oommen
2026-05-16 2:47 ` Claude review: " Claude Code Review Bot
2026-05-12 20:52 ` Akhil P Oommen [this message]
2026-05-13 5:39 ` [PATCH RFT 3/5] drm/msm/adreno: Fix invalid drvdata typecast in adreno_remove() Dmitry Baryshkov
2026-05-16 2:47 ` Claude review: " Claude Code Review Bot
2026-05-12 20:52 ` [PATCH RFT 4/5] drm/msm: Always use component model for standalone GPU Akhil P Oommen
2026-05-13 11:43 ` Dmitry Baryshkov
2026-05-13 21:09 ` Akhil P Oommen
2026-05-16 2:47 ` Claude review: " Claude Code Review Bot
2026-05-12 20:53 ` [PATCH RFT 5/5] drm/msm: Attach a driver to the GMU Akhil P Oommen
2026-05-13 11:46 ` Dmitry Baryshkov
2026-05-16 2:47 ` Claude review: " Claude Code Review Bot
2026-05-16 2:47 ` Claude review: drm/msm: Attach a driver to GMU Claude Code Review Bot
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