drm/amd/pm: fix a double-free in si_dpm_init

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[ Upstream commit ac16667237 ]

When the allocation of
adev->pm.dpm.dyn_state.vddc_dependency_on_dispclk.entries fails,
amdgpu_free_extended_power_table is called to free some fields of adev.
However, when the control flow returns to si_dpm_sw_init, it goes to
label dpm_failed and calls si_dpm_fini, which calls
amdgpu_free_extended_power_table again and free those fields again. Thus
a double-free is triggered.

Fixes: 841686df9f ("drm/amdgpu: add SI DPM support (v4)")
Signed-off-by: Zhipeng Lu <alexious@zju.edu.cn>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Zhipeng Lu 2023-12-14 23:24:11 +08:00 • committed by Greg Kroah-Hartman

parent 9e8fa2afaf

commit ca8e2e251c

1 changed files with 2 additions and 3 deletions

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drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c

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