]> git.ipfire.org Git - thirdparty/kernel/linux.git/commitdiff
drm/amd/pm: Fix null pointer dereference issue
authorJinzhou Su <jinzhou.su@amd.com>
Wed, 21 Jan 2026 08:42:11 +0000 (16:42 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 28 Jan 2026 21:21:11 +0000 (16:21 -0500)
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>
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

index 6b6b05e8f7361cd1015772c0569dc44a861f3b4d..3f70731105a2329275343c37e54ab56a734956b9 100644 (file)
@@ -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);