janus: Simplify prev commit 2453e8f

Author: liviuchircu

modules/janus/janus_common.c

@@ -230,39 +230,31 @@ int populate_janus_handler_id(janus_connection *conn, cJSON *request)
 	if (aux == NULL || aux->type != cJSON_String ||
 	(reply_status.s = aux->valuestring) == NULL) {
 		char *dbg = cJSON_Print(request);
-		LM_ERR("Unexpected JANUS reply received - %s\n",
-				dbg ? dbg : "(null)");
-		if (dbg)
-			pkg_free(dbg);
+		LM_ERR("Unexpected JANUS reply received - %s\n", dbg);
+		pkg_free(dbg);
 		return -1;
 	}
 
 	if (memcmp(reply_status.s,"success",7) != 0) {
 		char *dbg = cJSON_Print(request);
-		LM_ERR("non-succesful JANUS reply received - %s\n",
-				dbg ? dbg : "(null)");
-		if (dbg)
-			pkg_free(dbg);
+		LM_ERR("non-succesful JANUS reply received - %s\n", dbg);
+		pkg_free(dbg);
 		return -1;
 	}
 
 	aux = cJSON_GetObjectItem(request, "data");
 	if (aux == NULL || aux->type != cJSON_Object) {
 		char *dbg = cJSON_Print(request);
-		LM_ERR("Unexpected JANUS reply received, no data in %s\n",
-				dbg ? dbg : "(null)");
-		if (dbg)
-			pkg_free(dbg);
+		LM_ERR("Unexpected JANUS reply received, no data in %s\n", dbg);
+		pkg_free(dbg);
 		return -1;
 	}
 
 	aux2 = cJSON_GetObjectItem(aux, "id");
 	if (aux2 == NULL || aux2->type != cJSON_Number) {
 		char *dbg = cJSON_Print(request);
-		LM_ERR("Unexpected JANUS reply received, id is not number %s\n",
-				dbg ? dbg : "(null)");
-		if (dbg)
-			pkg_free(dbg);
+		LM_ERR("Unexpected JANUS reply received, id is not number %s\n", dbg);
+		pkg_free(dbg);
 		return -1;
 	}