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drm/amdgpu: use error label to handle exceptional case 

Use error label to decrease global item unref and make codes more
readable.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Huang Rui 2016-09-07 20:55:42 +08:00 committed by Alex Deucher
parent 441f90ecf5
commit e9d035eca4
1 changed files with 13 additions and 9 deletions
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22
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@ -89,10 +89,10 @@ int amdgpu_ttm_global_init(struct amdgpu_device *adev)
global_ref->init = &amdgpu_ttm_mem_global_init;
global_ref->release = &amdgpu_ttm_mem_global_release;
r = drm_global_item_ref(global_ref);
if (r != 0) {
if (r) {
DRM_ERROR("Failed setting up TTM memory accounting "
"subsystem.\n");
return r;
goto error_mem;
}
adev->mman.bo_global_ref.mem_glob =
@ -103,26 +103,30 @@ int amdgpu_ttm_global_init(struct amdgpu_device *adev)
global_ref->init = &ttm_bo_global_init;
global_ref->release = &ttm_bo_global_release;
r = drm_global_item_ref(global_ref);
if (r != 0) {
if (r) {
DRM_ERROR("Failed setting up TTM BO subsystem.\n");
drm_global_item_unref(&adev->mman.mem_global_ref);
return r;
goto error_bo;
}
ring = adev->mman.buffer_funcs_ring;
rq = &ring->sched.sched_rq[AMD_SCHED_PRIORITY_KERNEL];
r = amd_sched_entity_init(&ring->sched, &adev->mman.entity,
rq, amdgpu_sched_jobs);
if (r != 0) {
if (r) {
DRM_ERROR("Failed setting up TTM BO move run queue.\n");
drm_global_item_unref(&adev->mman.mem_global_ref);
drm_global_item_unref(&adev->mman.bo_global_ref.ref);
return r;
goto error_entity;
}
adev->mman.mem_global_referenced = true;
return 0;
error_entity:
drm_global_item_unref(&adev->mman.bo_global_ref.ref);
error_bo:
drm_global_item_unref(&adev->mman.mem_global_ref);
error_mem:
return r;
}
static void amdgpu_ttm_global_fini(struct amdgpu_device *adev)