File no-return-nonvoid.patch of Package nbd

Index: nbd-3.11/nbd-server.c
===================================================================
--- nbd-3.11.orig/nbd-server.c
+++ nbd-3.11/nbd-server.c
@@ -1525,6 +1525,7 @@ CLIENT* negotiate(int net, GArray* serve
 		err_nonfatal("Session terminated by client");
 		return NULL;
 	}
+ 	return NULL;
 }
 
 void send_export_info(CLIENT* client) {