fixes for VS2010 code analysis - hope these are OK else-ware

libs/esl/src/esl_event.c

@@ -825,10 +825,12 @@ ESL_DECLARE(esl_status_t) esl_event_serialize(esl_event_t *event, char **str, es
 
 		if ((len + llen) > dlen) {
 			char *m;
+			char *old = buf;
 			dlen += (blocksize + (len + llen));
 			if ((m = realloc(buf, dlen))) {
 				buf = m;
 			} else {
+				buf = old;
 				abort();
 			}
 		}
@@ -852,10 +854,12 @@ ESL_DECLARE(esl_status_t) esl_event_serialize(esl_event_t *event, char **str, es
 
 		if ((len + llen) > dlen) {
 			char *m;
+			char *old = buf;
 			dlen += (blocksize + (len + llen));
 			if ((m = realloc(buf, dlen))) {
 				buf = m;
 			} else {
+				buf = old;
 				abort();
 			}
 		}

libs/libteletone/src/libteletone_generate.c

@@ -414,6 +414,11 @@ TELETONE_API(int) teletone_run(teletone_generation_session_t *ts, const char *cm
 								*e++ = '\0';
 							}
 							do {
+#if (_MSC_VER == 1600)
+								if (!p) {
+									break;
+								}
+#endif
 								if ((next = strchr(p, ',')) != 0) {
 									*next++ = '\0';
 								}