[PATCH v3 1/4] winmm: Always allocate at least MAX_PATH bytes in mmioOpenW().

[Zebediah Figura]

Signed-off-by: Zebediah Figura 
---
 dlls/winmm/mmio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/winmm/mmio.c b/dlls/winmm/mmio.c
index 48bbd3ed48d..cb3175c5cd7 100644
--- a/dlls/winmm/mmio.c
+++ b/dlls/winmm/mmio.c
@@ -734,6 +734,7 @@ HMMIO WINAPI mmioOpenW(LPWSTR szFileName, MMIOINFO* lpmmioinfo,
     if (szFileName)
     {
         INT     len = WideCharToMultiByte( CP_ACP, 0, szFileName, -1, NULL, 0, NULL, NULL );
+        if (len < MAX_PATH) len = MAX_PATH;
         szFn = HeapAlloc( GetProcessHeap(), 0, len );
         if (!szFn) return NULL;
         WideCharToMultiByte( CP_ACP, 0, szFileName, -1, szFn, len, NULL, NULL );