drm/msm/adreno: fix autosuspend cleanup during teardown

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adreno_gpu_init() calls pm_runtime_use_autosuspend(), but
adreno_gpu_cleanup() does not call the matching
pm_runtime_dont_use_autosuspend() during teardown.

If the autosuspend delay is set to a negative value while autosuspend
is enabled, the runtime PM core increments usage_count to prevent
runtime suspend. Without calling pm_runtime_dont_use_autosuspend()
during teardown, this reference is not dropped and usage_count remains
unbalanced.

The documentation for pm_runtime_use_autosuspend() also notes that it
is important to undo it with pm_runtime_dont_use_autosuspend() at
driver exit time, unless runtime PM was initially enabled with
devm_pm_runtime_enable().

Add the missing pm_runtime_dont_use_autosuspend() call to
adreno_gpu_cleanup().

This issue was found by manual code inspection.

Fixes: eeb754746b ("drm/msm/gpu: use pm-runtime")
Cc: stable@vger.kernel.org
Signed-off-by: Guangshuo Li <lgs201920130244@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/745110/
Link: https://lore.kernel.org/r/20260808131624.2854412-1-lgs201920130244@gmail.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>

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Guangshuo Li 2026-08-08 21:16:24 +08:00 • committed by Dmitry Baryshkov

parent e249a6e2a1

commit 6fbbf1e152

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

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