shell32: Pass correct buffer length to RegQueryValueExW().

Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

shell32: Pass correct buffer length to RegQueryValueExW().
0bfb97dc · Nikolay Sivov · Alexandre Julliard · 703e8209 · 0bfb97dc
Commit 0bfb97dc authored Feb 08, 2017 by Nikolay Sivov Committed by Alexandre Julliard Feb 08, 2017
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shellpath.c dlls/shell32/shellpath.c +2 -1

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--- a/dlls/shell32/shellpath.c
+++ b/dlls/shell32/shellpath.c
@@ -3209,8 +3209,8 @@ static HRESULT _SHGetUserShellFolderPath(HKEY rootKey, LPCWSTR userPrefix,
    HRESULT hr;
    WCHAR shellFolderPath[MAX_PATH], userShellFolderPath[MAX_PATH];
    LPCWSTR pShellFolderPath, pUserShellFolderPath;
-    DWORD dwType, dwPathLen = MAX_PATH;
    HKEY userShellFolderKey, shellFolderKey;
+    DWORD dwType, dwPathLen;

    TRACE("%p,%s,%s,%p\n",rootKey, debugstr_w(userPrefix), debugstr_w(value),
     path);
@@ -3245,6 +3245,7 @@ static HRESULT _SHGetUserShellFolderPath(HKEY rootKey, LPCWSTR userPrefix,
        return E_FAIL;
    }

+    dwPathLen = MAX_PATH * sizeof(WCHAR);
    if (!RegQueryValueExW(userShellFolderKey, value, NULL, &dwType,
     (LPBYTE)path, &dwPathLen) && (dwType == REG_EXPAND_SZ || dwType == REG_SZ))
    {