FS-5395: --resolve Resolve another mod_rtmp crash where oh specific hangup…

FS-5395: --resolve Resolve another mod_rtmp crash where oh specific hangup scenarios there would be a free of variable that wasn't ever malloced

src/mod/endpoints/mod_rtmp/mod_rtmp.c

@@ -767,6 +767,7 @@ switch_status_t rtmp_session_request(rtmp_profile_t *profile, rtmp_session_t **n
 	(*newsession)->in_chunksize = (*newsession)->out_chunksize = RTMP_DEFAULT_CHUNKSIZE;
 	(*newsession)->recv_ack_window = RTMP_DEFAULT_ACK_WINDOW;
 	(*newsession)->next_streamid = 1;
+	(*newsession)->io_private = NULL;
 		
 	switch_uuid_get(&uuid);
 	switch_uuid_format((*newsession)->uuid, &uuid);

src/mod/endpoints/mod_rtmp/rtmp_tcp.c

@@ -183,8 +183,10 @@ static switch_status_t rtmp_tcp_close(rtmp_session_t *rsession)
 		switch_buffer_destroy(&(io_pvt->sendq));
 	}
 	
-	free(rsession->io_private);
-	rsession->io_private = NULL;
+	if ( rsession->io_private ) {
+		free(rsession->io_private);
+		rsession->io_private = NULL;
+	}
 
 	return SWITCH_STATUS_SUCCESS;
 }