Fix fallout from r1818

git-svn-id: svn://svn.berlios.de/openocd/trunk@1824 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/jtag/jtag.c

@@ -868,7 +868,7 @@ int MINIDRIVER(interface_jtag_add_dr_scan)(int num_fields, scan_field_t *fields,
 	}
 
 	/* field_count represents the true number of fields setup*/
-	(*last_cmd)->cmd.scan->num_fields = field_count;
+	cmd->cmd.scan->num_fields = field_count;
 	return ERROR_OK;
 }