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| author | Jinzhou Su <jinzhou.su@amd.com> | 2026-01-21 11:42:11 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2026-03-04 15:20:11 +0300 |
| commit | 8e035505fa0e5b7c4306fd3f4e27f8e8f5bfad8c (patch) | |
| tree | 466052afd025fbfa403e3d3a4de6f980c1cbd27c /drivers/gpu | |
| parent | 0a96e2a5d35594f916cd36aeaef7569b8201cd34 (diff) | |
| download | linux-8e035505fa0e5b7c4306fd3f4e27f8e8f5bfad8c.tar.xz | |
drm/amd/pm: Fix null pointer dereference issue
[ Upstream commit 1197366cca89a4c44c541ddedb8ce8bf0757993d ]
If SMU is disabled, during RAS initialization,
there will be null pointer dereference issue here.
Signed-off-by: Jinzhou Su <jinzhou.su@amd.com>
Reviewed-by: Yang Wang <kevinyang.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c index f51fa265230b..2a0e826d0317 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -618,6 +618,9 @@ int amdgpu_smu_ras_send_msg(struct amdgpu_device *adev, enum smu_message_type ms struct smu_context *smu = adev->powerplay.pp_handle; int ret = -EOPNOTSUPP; + if (!smu) + return ret; + if (smu->ppt_funcs && smu->ppt_funcs->ras_send_msg) ret = smu->ppt_funcs->ras_send_msg(smu, msg, param, read_arg); |