Correct a crash if the length buffer is NULL.

90bc168c · Aric Stewart · Alexandre Julliard · fbc7a402 · 90bc168c
Commit 90bc168c authored Jun 07, 2005 by Aric Stewart Committed by Alexandre Julliard Jun 07, 2005
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msi.c dlls/msi/msi.c +6 -1

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--- a/dlls/msi/msi.c
+++ b/dlls/msi/msi.c
@@ -971,11 +971,16 @@ INSTALLSTATE WINAPI MsiGetComponentPathA(LPCSTR szProduct, LPCSTR szComponent,
    }
    if( pcchBuf && *pcchBuf > 0 )
+    {
        lpwPathBuf = HeapAlloc( GetProcessHeap(), 0, *pcchBuf * sizeof(WCHAR));
+        incoming_len = *pcchBuf;
+    }
    else
+    {
        lpwPathBuf = NULL;
+        incoming_len = 0;
+    }
-    incoming_len = *pcchBuf;
    rc = MsiGetComponentPathW(szwProduct, szwComponent, lpwPathBuf, pcchBuf);
    HeapFree( GetProcessHeap(), 0, szwProduct);