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ovl: Return -ENOMEM if an allocation fails ovl_lookup()

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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: 02b69b284c ("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>
This commit is contained in:
Dan Carpenter 2017-09-22 23:45:18 +03:00 • committed by Miklos Szeredi
parent b3885bd6ed
commit 0ce5cdc9d7
1 changed files with 1 additions and 0 deletions
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fs/overlayfs/namei.c
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@ -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;