drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails

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Calling a6xx_destroy() before adreno_gpu_init() leads to a null pointer
dereference on:

msm_gpu_cleanup() : platform_set_drvdata(gpu->pdev, NULL);

as gpu->pdev is only assigned in:

a6xx_gpu_init()
|_ adreno_gpu_init
    |_ msm_gpu_init()

Instead of relying on handwavy null checks down the cleanup chain,
explicitly de-allocate the LLC data and free a6xx_gpu instead.

Fixes: 76efc2453d ("drm/msm/gpu: Fix crash during system suspend after unbind")
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/588919/
Signed-off-by: Rob Clark <robdclark@chromium.org>

...

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Konrad Dybcio 2024-04-12 10:53:25 +02:00 • committed by Rob Clark

parent 328660262d

commit 46d4efcccc

1 changed files with 2 additions and 1 deletions

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drivers/gpu/drm/msm/adreno/a6xx_gpu.c

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