server: Make padding explicit in the wake_up_reply structure.

include/wine/server_protocol.h

@@ -137,6 +137,7 @@ struct wake_up_reply
 {
     client_ptr_t cookie;
     int          signaled;
+    int          __pad;
 };
 
 
@@ -5058,6 +5059,6 @@ union generic_reply
     struct set_window_layered_info_reply set_window_layered_info_reply;
 };
 
-#define SERVER_PROTOCOL_VERSION 367
+#define SERVER_PROTOCOL_VERSION 368
 
 #endif /* __WINE_WINE_SERVER_PROTOCOL_H */

server/protocol.def

@@ -153,6 +153,7 @@ struct wake_up_reply
 {
     client_ptr_t cookie;    /* magic cookie that was passed in select_request */
     int          signaled;  /* wait result */
+    int          __pad;
 };
 
 /* NT-style timeout, in 100ns units, negative means relative timeout */

server/thread.c

@@ -565,6 +565,7 @@ static int send_thread_wakeup( struct thread *thread, client_ptr_t cookie, int s
     struct wake_up_reply reply;
     int ret;
 
+    memset( &reply, 0, sizeof(reply) );
     reply.cookie   = cookie;
     reply.signaled = signaled;
     if ((ret = write( get_unix_fd( thread->wait_fd ), &reply, sizeof(reply) )) == sizeof(reply))