dbghelp: Add a null check for optional output parameter for function SymFromAddr.

89832cde · Stefan Leichter · Alexandre Julliard · 0b5b54e9 · 89832cde
Commit 89832cde authored Dec 01, 2013 by Stefan Leichter Committed by Alexandre Julliard Dec 02, 2013
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symbol.c dlls/dbghelp/symbol.c +2 -1

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--- a/dlls/dbghelp/symbol.c
+++ b/dlls/dbghelp/symbol.c
@@ -1229,7 +1229,8 @@ BOOL WINAPI SymFromAddr(HANDLE hProcess, DWORD64 Address,
    if ((sym = symt_find_nearest(pair.effective, Address)) == NULL) return FALSE;

    symt_fill_sym_info(&pair, NULL, &sym->symt, Symbol);
-    *Displacement = Address - Symbol->Address;
+    if (Displacement)
+        *Displacement = Address - Symbol->Address;
    return TRUE;
 }