From 1197366cca89a4c44c541ddedb8ce8bf0757993d Mon Sep 17 00:00:00 2001 From: Jinzhou Su Date: Wed, 21 Jan 2026 16:42:11 +0800 Subject: [PATCH] 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 Reviewed-by: Yang Wang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 3 +++ 1 file changed, 3 insertions(+) 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); -- 2.47.3