[PATCH] drm/amd/powerplay: fix deadlock around smu_handle_task V2

[Evan Quan]

As the lock was already held on the entrance to smu_handle_task.

- V2: lock in small granularity

Change-Id: I5388aa917ef0e330974e26c59db42d1354b6a865
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
index 961f4e54ed18..eb255a6bd3a9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
@@ -3049,11 +3049,9 @@ void amdgpu_pm_compute_clocks(struct amdgpu_device *adev)
 	if (is_support_sw_smu(adev)) {
 		struct smu_context *smu = &adev->smu;
 		struct smu_dpm_context *smu_dpm = &adev->smu.smu_dpm;
-		mutex_lock(&(smu->mutex));
 		smu_handle_task(&adev->smu,
 				smu_dpm->dpm_level,
 				AMD_PP_TASK_DISPLAY_CONFIG_CHANGE);
-		mutex_unlock(&(smu->mutex));
 	} else {
 		if (adev->powerplay.pp_funcs->dispatch_tasks) {
 			if (!amdgpu_device_has_dc_support(adev)) {
-- 
2.21.0