drm/amd/amdgpu: cleanup the code style a bit

This change is to cleanup the code style a bit.
Signed-off-by: Bernard Zhao <bernard@vivo.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c

@@ -283,17 +283,15 @@ static int amdgpu_virt_init_ras_err_handler_data(struct amdgpu_device *adev)
 
 	*data = kmalloc(sizeof(struct amdgpu_virt_ras_err_handler_data), GFP_KERNEL);
 	if (!*data)
-		return -ENOMEM;
+		goto data_failure;
 
 	bps = kmalloc_array(align_space, sizeof((*data)->bps), GFP_KERNEL);
-	bps_bo = kmalloc_array(align_space, sizeof((*data)->bps_bo), GFP_KERNEL);
+	if (!bps)
+		goto bps_failure;
 
-	if (!bps || !bps_bo) {
-		kfree(bps);
-		kfree(bps_bo);
-		kfree(*data);
-		return -ENOMEM;
-	}
+	bps_bo = kmalloc_array(align_space, sizeof((*data)->bps_bo), GFP_KERNEL);
+	if (!bps_bo)
+		goto bps_bo_failure;
 
 	(*data)->bps = bps;
 	(*data)->bps_bo = bps_bo;
@@ -303,6 +301,13 @@ static int amdgpu_virt_init_ras_err_handler_data(struct amdgpu_device *adev)
 	virt->ras_init_done = true;
 
 	return 0;
+
+bps_bo_failure:
+	kfree(bps);
+bps_failure:
+	kfree(*data);
+data_failure:
+	return -ENOMEM;
 }
 
 static void amdgpu_virt_ras_release_bp(struct amdgpu_device *adev)