From 776f81b3beb24cd9f36620722872f8ee5909502e Mon Sep 17 00:00:00 2001
From: Rob Shearman <rob@codeweavers.com>
Date: Tue, 2 Jan 2007 15:39:54 +0000
Subject: [PATCH] rpcrt4: A NULL IfSpec in RpcServerUnregisterIf should remove
 all interfaces, not crash.

---
 dlls/rpcrt4/rpc_server.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/rpcrt4/rpc_server.c b/dlls/rpcrt4/rpc_server.c
index 50549ea5736..285ef094a64 100644
--- a/dlls/rpcrt4/rpc_server.c
+++ b/dlls/rpcrt4/rpc_server.c
@@ -831,7 +831,7 @@ RPC_STATUS WINAPI RpcServerUnregisterIf( RPC_IF_HANDLE IfSpec, UUID* MgrTypeUuid
 
   EnterCriticalSection(&server_cs);
   LIST_FOR_EACH_ENTRY(cif, &server_interfaces, RpcServerInterface, entry) {
-    if (!memcmp(&If->InterfaceId, &cif->If->InterfaceId, sizeof(RPC_SYNTAX_IDENTIFIER)) &&
+    if ((!IfSpec || !memcmp(&If->InterfaceId, &cif->If->InterfaceId, sizeof(RPC_SYNTAX_IDENTIFIER))) &&
         UuidEqual(MgrTypeUuid, &cif->MgrTypeUuid, &status)) {
       list_remove(&cif->entry);
       if (cif->CurrentCalls) {