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-rw-r--r--sys/ufs/ffs/ffs_vfsops.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/ufs/ffs/ffs_vfsops.c b/sys/ufs/ffs/ffs_vfsops.c
index 3760e8f..9c2b060 100644
--- a/sys/ufs/ffs/ffs_vfsops.c
+++ b/sys/ufs/ffs/ffs_vfsops.c
@@ -1317,6 +1317,10 @@ ffs_unmount(mp, mntflags)
MNT_ILOCK(mp);
mp->mnt_flag &= ~MNT_LOCAL;
MNT_IUNLOCK(mp);
+ if (td->td_su == mp) {
+ td->td_su = NULL;
+ vfs_rel(mp);
+ }
return (error);
fail:
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