From 0ce5cdc9d79277e55c3d80bf7d2b1adea2752078 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 22 Sep 2017 23:45:18 +0300
Subject: ovl: Return -ENOMEM if an allocation fails ovl_lookup()

The error code is missing here so it means we return ERR_PTR(0) or NULL.
The other error paths all return an error code so this probably should
as well.

Fixes: 02b69b284cd7 ("ovl: lookup redirects")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
---
 fs/overlayfs/namei.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'fs/overlayfs/namei.c')

diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index 654bea1a5ac9..e08164156cfe 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -635,6 +635,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 		}
 
 		if (d.redirect) {
+			err = -ENOMEM;
 			upperredirect = kstrdup(d.redirect, GFP_KERNEL);
 			if (!upperredirect)
 				goto out_put_upper;
-- 
cgit