drm/amd/pm: fix null ptr access
authorFlora Cui <flora.cui@amd.com>
Thu, 13 Jan 2022 06:55:24 +0000 (14:55 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 14 Jan 2022 22:52:47 +0000 (17:52 -0500)
commit1613f346f86b25121aceb941d03ca927e57af20c
tree482dc2939cafdd2603cc5ebc25d078457d233884
parente3d833f41c46b8c59c4af53897a6619bf667ebe5
drm/amd/pm: fix null ptr access

check null ptr first before access its element

v2: check adev->pm.dpm_enabled early in amdgpu_debugfs_pm_init()

Signed-off-by: Flora Cui <flora.cui@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/pm/amdgpu_dpm.c
drivers/gpu/drm/amd/pm/amdgpu_pm.c