advapi32: Prevent a crash when passing an allowed NULL parameter.

ce64e0d0 · Paul Vriens · Alexandre Julliard · 0539b463 · ce64e0d0
Commit ce64e0d0 authored Aug 21, 2008 by Paul Vriens Committed by Alexandre Julliard Aug 22, 2008
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service.c dlls/advapi32/service.c +1 -1

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--- a/dlls/advapi32/service.c
+++ b/dlls/advapi32/service.c
@@ -1766,7 +1766,7 @@ EnumServicesStatusExA(SC_HANDLE hSCManager, SC_ENUM_TYPE InfoLevel, DWORD dwServ
    FIXME("%p level=%d type=%x state=%x %p %x %p %p %p %s\n", hSCManager, InfoLevel,
          dwServiceType, dwServiceState, lpServices, cbBufSize,
          pcbBytesNeeded, lpServicesReturned,  lpResumeHandle, debugstr_a(pszGroupName));
-    *lpServicesReturned = 0;
+    if (lpServicesReturned) *lpServicesReturned = 0;
    SetLastError (ERROR_ACCESS_DENIED);
    return FALSE;
 }