cifs: fix another memleak, in cifs_root_iget

cifs_root_iget allocates full_path through
cifs_build_path_to_root, but fails to kfree it upon
cifs_get_inode_info* failure.

Make all failure exit paths traverse clean up
handling at the end of the function.

Signed-off-by: Oskar Schirmer <oskar@scara.com>
Reviewed-by: Jesper Juhl <jj@chaosbits.net>
Cc: stable@kernel.org
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index ef3a55bf86b..ff7d2995d25 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -881,8 +881,10 @@ struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino)
                 rc = cifs_get_inode_info(&inode, full_path, NULL, sb,
                                                 xid, NULL);
 
-        if (!inode)
-                return ERR_PTR(rc);
+        if (!inode) {
+                inode = ERR_PTR(rc);
+                goto out;
+        }
 
 #ifdef CONFIG_CIFS_FSCACHE
         /* populate tcon->resource_id */
@@ -898,13 +900,11 @@ struct inode *cifs_root_iget(struct super_block *sb, unsigned long ino)
                 inode->i_uid = cifs_sb->mnt_uid;
                 inode->i_gid = cifs_sb->mnt_gid;
         } else if (rc) {
-                kfree(full_path);
-                _FreeXid(xid);
                 iget_failed(inode);
-                return ERR_PTR(rc);
+                inode = ERR_PTR(rc);
         }
 
-
+out:
         kfree(full_path);
         /* can not call macro FreeXid here since in a void func
          * TODO: This is no longer true