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| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2022-07-08 19:26:32 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2022-08-15 20:19:18 +0300 |
| commit | 02b9f2636209beb843ca501d47f7fddc8792b2d7 (patch) | |
| tree | 6b796b4b8eb0db7db89a1e6c87266311ec1cdba9 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | a1653a75987749ba6dba94fa2e62f0f36b387d1a (diff) | |
| download | linux-02b9f2636209beb843ca501d47f7fddc8792b2d7.tar.xz | |
drm/msm/gpu: Drop qos request if devm_devfreq_add_device() fails
In the event that devm_devfreq_add_device() fails the device's qos freq
list is left referencing df->idle_freq and df->boost_freq. Attempting to
initialize devfreq again after a probe deferral will then cause invalid
memory accesses in dev_pm_qos_add_request().
Fix this by dropping the requests in the error path.
Fixes: 7c0ffcd40b16 ("drm/msm/gpu: Respect PM QoS constraints")
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/493001/
Link: https://lore.kernel.org/r/20220708162632.3529864-1-bjorn.andersson@linaro.org
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions