diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 8479df31cb437cd945d2f10f8ab9b4f6bc1d4f79..fed7a6c3d23e5678a1b3af9b1665dac8e35e3a0e 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -806,7 +806,7 @@ xlog_write_unmount_record(
 	 * stamp the tail LSN into the unmount record.
 	 */
 	if (log->l_targ != log->l_mp->m_ddev_targp)
-		xfs_blkdev_issue_flush(log->l_targ);
+		xfs_blkdev_issue_flush(log->l_mp->m_ddev_targp);
 	return xlog_write(log, &vec, ticket, NULL, NULL, XLOG_UNMOUNT_TRANS);
 }