dosyscall.c in rhodes-2.0.0.beta1

- old
+ new

@@ -14,10 +14,10 @@
 			RAWLOG_INFO2("%s => %s\n",params->_names[i],params->_values[i]);
 		}	
 	}
 	
 	//If synchronous call on ruby thread, generate return parameters 
-	if (!params->_call_on_ui_thread) {
+	if (params && !params->_call_on_ui_thread) {
 		PARAMS_WRAPPER* pw = malloc(sizeof(PARAMS_WRAPPER));
 		pw->_nparams = 2;
 		pw->_names = malloc(pw->_nparams*sizeof(char*));	
 		pw->_values = malloc(pw->_nparams*sizeof(char*));
 		for(i=0;i<pw->_nparams;i++){