[PATCH] Handling of amdgpu_device_resume return value for graceful teardown

[pavan.ramayanam at amd.com]

From: Pavan Kumar Ramayanam <pavan.ramayanam at amd.com>

The runtime resume PM op disregards the return value from
amdgpu_device_resume(), masking errors for failed resumes at the PM
layer.

Signed-off-by: Pavan Kumar Ramayanam <pavan.ramayanam at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0369d3532bf0..03f3cf194300 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1574,6 +1574,9 @@ static int amdgpu_pmops_runtime_resume(struct device *dev)
 		amdgpu_device_baco_exit(drm_dev);
 	}
 	ret = amdgpu_device_resume(drm_dev, false);
+	if (ret)
+		return ret;
+
 	if (amdgpu_device_supports_px(drm_dev))
 		drm_dev->switch_power_state = DRM_SWITCH_POWER_ON;
 	adev->in_runpm = false;
-- 
2.17.1