From e6707218f77bc850f41720dc70d3d4a0dce9ef4a Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Thu, 30 Mar 2017 13:21:01 +0800
Subject: [PATCH] drm/amdgpu: when resume failed, return error to avoid system
 hang.
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Continuing if the GPU fails to resume will end in pain.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 83dda05325b8..4aa10d7baf43 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2249,9 +2249,10 @@ int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon)
 	}
 
 	r = amdgpu_resume(adev);
-	if (r)
+	if (r) {
 		DRM_ERROR("amdgpu_resume failed (%d).\n", r);
-
+		return r;
+	}
 	amdgpu_fence_driver_resume(adev);
 
 	if (resume) {