--- libX11-1.1.3/src/xcb_io.c	2008-09-22 12:05:24.000000000 +0300
+++ libX11-1.1.4/src/xcb_io.c	2008-09-22 12:04:40.000000000 +0300
@@ -415,6 +415,7 @@
 				return ret_code;
 
 		_XError(dpy, (xError *) error);
+		free(error);
 		return 0;
 	}