drm/msm/a6xx: fix use-after-free of OPP in a6xx_pm_resume

The OPP reference obtained via dev_pm_opp_find_freq_ceil() is dropped
with dev_pm_opp_put() before being passed to dev_pm_opp_set_opp(). If
the reference count reaches zero, the OPP object may be freed, leading
to a use-after-free when dev_pm_opp_set_opp() dereferences it.

Fix the order of calls: first use the OPP to set the required
performance state, then release the reference.

Fixes: 5a903a44a984 ("drm/msm/a6xx: Introduce GMU wrapper support")
Signed-off-by: Roman Demidov <roman.demidov.nn@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/757104/
Message-ID: <20260929142103.81854-1-roman.demidov.nn@gmail.com>
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>

0 files changed, 0 insertions, 0 deletions