From: Pixel Ding <Pixel.Ding@amd.com>
Date: Tue, 25 Apr 2017 08:47:42 +0000 (+0800)
Subject: drm/amdgpu: fix mutex list null pointer reference
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=db2c2a9798d266fd1d7c950b3937793b05533bf4;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

drm/amdgpu: fix mutex list null pointer reference

Fix NULL pointer reference.

Signed-off-by: Pixel Ding <Pixel.Ding@amd.com>
Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 367811cd0763..43ca16b6eee2 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2065,7 +2065,8 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
 
 	DRM_INFO("amdgpu: finishing device.\n");
 	adev->shutdown = true;
-	drm_crtc_force_disable_all(adev->ddev);
+	if (adev->mode_info.mode_config_initialized)
+		drm_crtc_force_disable_all(adev->ddev);
 	/* evict vram memory */
 	amdgpu_bo_evict_vram(adev);
 	amdgpu_ib_pool_fini(adev);