From: Alfred Agrell <floating(a)muncher.se> --- dlls/ntdll/locale.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/dlls/ntdll/locale.c b/dlls/ntdll/locale.c index 545cc628909..ebc4b3befb6 100644 --- a/dlls/ntdll/locale.c +++ b/dlls/ntdll/locale.c @@ -950,14 +950,15 @@ NTSTATUS WINAPI RtlUTF8ToUnicodeN( WCHAR *dst, DWORD dstlen, DWORD *reslen, cons NTSTATUS status; if (!src) return STATUS_INVALID_PARAMETER_4; - if (!reslen) return STATUS_INVALID_PARAMETER; + if (!reslen && !dst) return STATUS_INVALID_PARAMETER; if (!dst) status = utf8_mbstowcs_size( src, srclen, &ret ); else status = utf8_mbstowcs( dst, dstlen / sizeof(WCHAR), &ret, src, srclen ); - *reslen = ret * sizeof(WCHAR); + if (reslen) + *reslen = ret * sizeof(WCHAR); return status; } -- GitLab https://gitlab.winehq.org/wine/wine/-/merge_requests/5976