Fix NtQueryPerformanceCounter parameter checking. Spotted by Alex

Woods.

Fix NtQueryPerformanceCounter parameter checking. Spotted by Alex
9ebbd3e5 · Juan Lang · Alexandre Julliard · 4390d003 · 9ebbd3e5
Commit 9ebbd3e5 authored Feb 21, 2005 by Juan Lang Committed by Alexandre Julliard Feb 21, 2005
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nt.c dlls/ntdll/nt.c +4 -1

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--- a/dlls/ntdll/nt.c
+++ b/dlls/ntdll/nt.c
@@ -520,9 +520,12 @@ NTSTATUS WINAPI NtQueryPerformanceCounter(
 	OUT PLARGE_INTEGER Frequency)
 {
    LARGE_INTEGER time;
+
+    if (!Counter) return STATUS_ACCESS_VIOLATION;
    NtQuerySystemTime( &time );
    Counter->QuadPart = time.QuadPart;
-    Frequency->QuadPart = 10000000;
+    if (Frequency)
+        Frequency->QuadPart = 10000000;
    return 0;
 }