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-rw-r--r--fs/nfs/super.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index fa517ae9207..71067d1ac9d 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1474,6 +1474,11 @@ static int nfs_xdev_get_sb(struct file_system_type *fs_type, int flags,
error = PTR_ERR(mntroot);
goto error_splat_super;
}
+ if (mntroot->d_inode->i_op != &nfs_dir_inode_operations) {
+ dput(mntroot);
+ error = -ESTALE;
+ goto error_splat_super;
+ }
s->s_flags |= MS_ACTIVE;
mnt->mnt_sb = s;