diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index cfe4de5..eef27f2 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1262,7 +1262,7 @@
 void
 xfs_unmountfs_close(xfs_mount_t *mp, struct cred *cr)
 {
-	if (mp->m_logdev_targp != mp->m_ddev_targp)
+	if (mp->m_logdev_targp && mp->m_logdev_targp != mp->m_ddev_targp)
 		xfs_free_buftarg(mp->m_logdev_targp, 1);
 	if (mp->m_rtdev_targp)
 		xfs_free_buftarg(mp->m_rtdev_targp, 1);