From a29d44aea1aef0bc58d4951f2ddbe5b22d9a2e94 Mon Sep 17 00:00:00 2001 From: "Stanley.Yang" Date: Thu, 10 Mar 2022 21:55:09 +0800 Subject: [PATCH] drm/amd/pm: use pm mutex to protect ecc info table Signed-off-by: Stanley.Yang Reviewed-by: Evan Quan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/pm/amdgpu_dpm.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c index 9a892d6..89fbee568 100644 --- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c +++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c @@ -643,11 +643,16 @@ int amdgpu_dpm_get_ecc_info(struct amdgpu_device *adev, void *umc_ecc) { struct smu_context *smu = adev->powerplay.pp_handle; + int ret = 0; if (!is_support_sw_smu(adev)) return -EOPNOTSUPP; - return smu_get_ecc_info(smu, umc_ecc); + mutex_lock(&adev->pm.mutex); + ret = smu_get_ecc_info(smu, umc_ecc); + mutex_unlock(&adev->pm.mutex); + + return ret; } struct amd_vce_state *amdgpu_dpm_get_vce_clock_state(struct amdgpu_device *adev, -- 2.7.4