drm/dp_mst: Lessen indenting in drm_dp_mst_topology_mgr_resume()

 */

int drm_dp_mst_topology_mgr_resume(struct drm_dp_mst_topology_mgr *mgr)

{

	int ret = 0;

	int ret;

	u8 guid[16];

	mutex_lock(&mgr->lock);

	if (!mgr->mst_primary)

		goto out_fail;

	if (mgr->mst_primary) {

		int sret;

		u8 guid[16];

		sret = drm_dp_dpcd_read(mgr->aux, DP_DPCD_REV, mgr->dpcd, DP_RECEIVER_CAP_SIZE);

		if (sret != DP_RECEIVER_CAP_SIZE) {

	ret = drm_dp_dpcd_read(mgr->aux, DP_DPCD_REV, mgr->dpcd,

			       DP_RECEIVER_CAP_SIZE);

	if (ret != DP_RECEIVER_CAP_SIZE) {

		DRM_DEBUG_KMS("dpcd read failed - undocked during suspend?\n");

			ret = -1;

			goto out_unlock;

		goto out_fail;

	}

	ret = drm_dp_dpcd_writeb(mgr->aux, DP_MSTM_CTRL,

					 DP_MST_EN | DP_UP_REQ_EN | DP_UPSTREAM_IS_SRC);

				 DP_MST_EN |

				 DP_UP_REQ_EN |

				 DP_UPSTREAM_IS_SRC);

	if (ret < 0) {

		DRM_DEBUG_KMS("mst write failed - undocked during suspend?\n");

			ret = -1;

			goto out_unlock;

		goto out_fail;

	}

	/* Some hubs forget their guids after they resume */

		sret = drm_dp_dpcd_read(mgr->aux, DP_GUID, guid, 16);

		if (sret != 16) {

	ret = drm_dp_dpcd_read(mgr->aux, DP_GUID, guid, 16);

	if (ret != 16) {

		DRM_DEBUG_KMS("dpcd read failed - undocked during suspend?\n");

			ret = -1;

			goto out_unlock;

		goto out_fail;

	}

	drm_dp_check_mstb_guid(mgr->mst_primary, guid);

		ret = 0;

	} else

		ret = -1;

	mutex_unlock(&mgr->lock);

out_unlock:

	return 0;

out_fail:

	mutex_unlock(&mgr->lock);

	return ret;

	return -1;

}

EXPORT_SYMBOL(drm_dp_mst_topology_mgr_resume);