dbghelp: nread can be NULL for read_mem and read_mem64.

3f8215d2 · Rob Shearman · Alexandre Julliard · d7471269 · 3f8215d2
Commit 3f8215d2 authored Feb 15, 2007 by Rob Shearman Committed by Alexandre Julliard Feb 15, 2007
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stack.c dlls/dbghelp/stack.c +2 -2

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--- a/dlls/dbghelp/stack.c
+++ b/dlls/dbghelp/stack.c
@@ -62,7 +62,7 @@ static BOOL CALLBACK read_mem(HANDLE hProcess, DWORD addr, void* buffer,
 {
    SIZE_T      r;
    if (!ReadProcessMemory(hProcess, (void*)addr, buffer, size, &r)) return FALSE;
-    *nread = r;
+    if (nread) *nread = r;
    return TRUE;
 }

@@ -71,7 +71,7 @@ static BOOL CALLBACK read_mem64(HANDLE hProcess, DWORD64 addr, void* buffer,
 {
    SIZE_T      r;
    if (!ReadProcessMemory(hProcess, (void*)(DWORD_PTR)addr, buffer, size, &r)) return FALSE;
-    *nread = r;
+    if (nread) *nread = r;
    return TRUE;
 }