We recently moved the locking around and accidentally introduced a double unlock bug.
Fixes: 1b5708ffb103 ('drm/amdgpu: export amd_powerplay_func to amdgpu and other ip block') Signed-off-by: Dan Carpenter dan.carpenter@oracle.com
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index 3b78982..872e586 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -147,8 +147,7 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev, } else if (strncmp("auto", buf, strlen("auto")) == 0) { level = AMDGPU_DPM_FORCED_LEVEL_AUTO; } else { - count = -EINVAL; - goto fail; + return -EINVAL; }
if (adev->pp_enabled) @@ -157,18 +156,18 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev, mutex_lock(&adev->pm.mutex); if (adev->pm.dpm.thermal_active) { count = -EINVAL; - goto fail; + goto unlock; } ret = amdgpu_dpm_force_performance_level(adev, level); - if (ret) + if (ret) { count = -EINVAL; - else - adev->pm.dpm.forced_level = level; + goto unlock; + } + adev->pm.dpm.forced_level = level; + +unlock: mutex_unlock(&adev->pm.mutex); } -fail: - mutex_unlock(&adev->pm.mutex); - return count; }