diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index 2649759c478af4ec23c0378bd6de02ace44081d0..4f4362d5a04c4c5283fec23fa703440e12da8d49 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -697,15 +697,6 @@ static int vfat_find(struct inode *dir, const struct qstr *qname,
 	return fat_search_long(dir, qname->name, len, sinfo);
 }
 
-/*
- * (nfsd's) anonymous disconnected dentry?
- * NOTE: !IS_ROOT() is not anonymous (I.e. d_splice_alias() did the job).
- */
-static int vfat_d_anon_disconn(struct dentry *dentry)
-{
-	return IS_ROOT(dentry) && (dentry->d_flags & DCACHE_DISCONNECTED);
-}
-
 static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
 				  unsigned int flags)
 {
@@ -738,8 +729,7 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
 	 * Checking "alias->d_parent == dentry->d_parent" to make sure
 	 * FS is not corrupted (especially double linked dir).
 	 */
-	if (alias && alias->d_parent == dentry->d_parent &&
-	    !vfat_d_anon_disconn(alias)) {
+	if (alias && alias->d_parent == dentry->d_parent) {
 		/*
 		 * This inode has non anonymous-DCACHE_DISCONNECTED
 		 * dentry. This means, the user did ->lookup() by an
@@ -747,7 +737,6 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry,
 		 *
 		 * Switch to new one for reason of locality if possible.
 		 */
-		BUG_ON(d_unhashed(alias));
 		if (!S_ISDIR(inode->i_mode))
 			d_move(alias, dentry);
 		iput(inode);