cifs: Fix memory leak in cifs_hardlink()

Fix a potential memory leak in the cifs_hardlink() error handling path.
Detected by Coverity: CID 728510, CID 728511.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Steve French <smfrench@gmail.com>

diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 92aee08483a52e100011fb05e1fcfc5255b340ac..28bc8ee97056f1688d487f65c26ffb105c655c38 100644 (file)
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -438,8 +438,10 @@ cifs_hardlink(struct dentry *old_file, struct inode *inode,
                                                CIFS_MOUNT_MAP_SPECIAL_CHR);
        else {
                server = tcon->ses->server;
-               if (!server->ops->create_hardlink)
-                       return -ENOSYS;
+               if (!server->ops->create_hardlink) {
+                       rc = -ENOSYS;
+                       goto cifs_hl_exit;
+               }
                rc = server->ops->create_hardlink(xid, tcon, from_name, to_name,
                                                  cifs_sb);
                if ((rc == -EIO) || (rc == -EINVAL))