add dest

git-svn-id: http://svn.openzap.org/svn/openzap/trunk@242 a93c3328-9c30-0410-af19-c9cd2b2d52af

libs/freetdm/src/zap_io.c

@@ -249,6 +249,7 @@ zap_status_t zap_span_close_all(void)
 				zap_mutex_destroy(&span->channels[j].mutex);
 				zap_buffer_destroy(&span->channels[j].digit_buffer);
 				zap_buffer_destroy(&span->channels[j].dtmf_buffer);
+				zap_buffer_destroy(&span->channels[j].fsk_buffer);
 			}
 		}