smack: make smack_parse_opts_str() clean up on failure

fixes e.g. a btrfs leak...

Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 81fb4c1..73e4179 100644 (file)
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -735,6 +735,7 @@ out_err:
        kfree(fshat);
        kfree(fsroot);
        kfree(fstransmute);
+       security_free_mnt_opts(opts);
        return rc;
 }