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authorAlex Shi <alex.shi@linaro.org>2017-07-18 14:31:54 +0800
committerAlex Shi <alex.shi@linaro.org>2017-07-18 14:31:54 +0800
commit16e243013beb93902693c4bb90e4348c99588429 (patch)
tree6a5858d948085974ef1f26bb1e4b546cfb44cfc5 /drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
parent2120557722577d8cff75a33a799ad15582dbd8ef (diff)
parent5289d9c979092878f2bf741d8b365ef7565fb6db (diff)
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidlsk-v4.4-17.07-android
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 25a3e2485cc2..2bc17a907ecf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -124,6 +124,13 @@ int amdgpu_cs_get_ring(struct amdgpu_device *adev, u32 ip_type,
}
break;
}
+
+ if (!(*out_ring && (*out_ring)->adev)) {
+ DRM_ERROR("Ring %d is not initialized on IP %d\n",
+ ring, ip_type);
+ return -EINVAL;
+ }
+
return 0;
}