ceph: d_obtain_alias() returns ERR_PTR()

d_obtain_alias() doesn't return NULL, it returns an ERR_PTR().

Signed-off-by Dan Carpenter <[email protected]>

fs/ceph/export.c +6 -7

index 9d67572..192ec40 100644
@@ -93,11 +93,11 @@ static struct dentry *__fh_to_dentry(struct super_block *sb,
 		return ERR_PTR(-ESTALE);
 
 	dentry = d_obtain_alias(inode);
-	if (!dentry) {
+	if (IS_ERR(dentry)) {
 		pr_err("fh_to_dentry %llx -- inode %p but ENOMEM\n",
 		       fh->ino, inode);
 		iput(inode);
-		return ERR_PTR(-ENOMEM);
+		return dentry;
 	}
 	err = ceph_init_dentry(dentry);
 

@@ -149,11 +149,11 @@ static struct dentry *__cfh_to_dentry(struct super_block *sb,
 	}
 
 	dentry = d_obtain_alias(inode);
-	if (!dentry) {
+	if (IS_ERR(dentry)) {
 		pr_err("cfh_to_dentry %llx -- inode %p but ENOMEM\n",
 		       cfh->ino, inode);
 		iput(inode);
-		return ERR_PTR(-ENOMEM);
+		return dentry;
 	}
 	err = ceph_init_dentry(dentry);
 	if (err < 0) {

@@ -202,11 +202,11 @@ static struct dentry *ceph_fh_to_parent(struct super_block *sb,
 		return ERR_PTR(-ESTALE);
 
 	dentry = d_obtain_alias(inode);
-	if (!dentry) {
+	if (IS_ERR(dentry)) {
 		pr_err("fh_to_parent %llx -- inode %p but ENOMEM\n",
 		       cfh->ino, inode);
 		iput(inode);
-		return ERR_PTR(-ENOMEM);
+		return dentry;
 	}
 	err = ceph_init_dentry(dentry);
 	if (err < 0) {
--

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