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| author | Jinzhou Su <jinzhou.su@amd.com> | 2026-01-21 11:42:11 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-01-29 00:21:11 +0300 |
| commit | 1197366cca89a4c44c541ddedb8ce8bf0757993d (patch) | |
| tree | 2d69263e58dd3603d5f1a5c2ef9142755e583802 | |
| parent | e698127eb7249d6c70fa8f2bdba469c0e54f2e2b (diff) | |
| download | linux-1197366cca89a4c44c541ddedb8ce8bf0757993d.tar.xz | |
drm/amd/pm: Fix null pointer dereference issue
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>
| -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 6b6b05e8f736..3f70731105a2 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c @@ -619,6 +619,9 @@ 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); |