brei: fix a compiler warning in release mode

Re-ordering commands in buildtype=release means recvfd may not be set by the
time _cleanup_ is called (due to the goto outs). Replace those with return
statements, it's more logical here anyway.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

src/brei-shared.c

@@ -99,10 +99,9 @@ brei_dispatch(int fd,
 	if (rc == -EAGAIN) {
 		return 0;
 	} else if (rc == 0) {
-		rc = -ECANCELED;
-		goto error;
+		return -ECANCELED;
 	} else if (rc < 0) {
-		goto error;
+		return rc;
 	}
 
 	_cleanup_close_ int recvfd = -1;