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drm/amdgpu fix amdgpu.dpm=0 (v2)

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Fix crash when disabling dpm.

v2: agd5f: fix coding style, cleanup commit message

Signed-off-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sonny Jiang 2015-04-30 17:12:14 -04:00 committed by Alex Deucher
parent c92b90ccc2
commit 46651cc5db
1 changed files with 13 additions and 4 deletions
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17
drivers/gpu/drm/amd/amdgpu/cz_dpm.c
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@ -1206,10 +1206,7 @@ static int cz_dpm_enable(struct amdgpu_device *adev)
static int cz_dpm_hw_init(struct amdgpu_device *adev)
{
int ret;
if (!amdgpu_dpm)
return 0;
int ret = 0;
mutex_lock(&adev->pm.mutex);
@ -1229,6 +1226,12 @@ static int cz_dpm_hw_init(struct amdgpu_device *adev)
return ret;
}
if (!amdgpu_dpm) {
adev->pm.dpm_enabled = false;
mutex_unlock(&adev->pm.mutex);
return ret;
}
/* cz dpm setup asic */
cz_dpm_setup_asic(adev);
@ -1326,6 +1329,12 @@ static int cz_dpm_resume(struct amdgpu_device *adev)
return ret;
}
if (!amdgpu_dpm) {
adev->pm.dpm_enabled = false;
mutex_unlock(&adev->pm.mutex);
return ret;
}
/* cz dpm setup asic */
cz_dpm_setup_asic(adev);