diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 06f0a73..7f50272 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1229,16 +1229,15 @@
 }
 
 /*
- * xfs_unmountfs
- *
  * This flushes out the inodes,dquots and the superblock, unmounts the
  * log and makes sure that incore structures are freed.
  */
-int
-xfs_unmountfs(xfs_mount_t *mp)
+void
+xfs_unmountfs(
+	struct xfs_mount	*mp)
 {
-	__uint64_t	resblks;
-	int		error = 0;
+	__uint64_t		resblks;
+	int			error;
 
 	IRELE(mp->m_rootip);
 
@@ -1311,7 +1310,6 @@
 	xfs_errortag_clearall(mp, 0);
 #endif
 	xfs_mount_free(mp);
-	return 0;
 }
 
 STATIC void
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 02c16b9..f3c1024 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -513,7 +513,7 @@
 extern int	xfs_mountfs(xfs_mount_t *mp);
 extern void	xfs_mountfs_check_barriers(xfs_mount_t *mp);
 
-extern int	xfs_unmountfs(xfs_mount_t *);
+extern void	xfs_unmountfs(xfs_mount_t *);
 extern int	xfs_unmountfs_writesb(xfs_mount_t *);
 extern int	xfs_unmount_flush(xfs_mount_t *, int);
 extern int	xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);