Fix memory leak in error path.

dlls/winmm/mci.c

@@ -1458,7 +1458,11 @@ DWORD WINAPI mciSendStringA(LPCSTR lpstrCommand, LPSTR lpstrRet,
     if (lpstrRet)
     {
         lpwstrRet = HeapAlloc(GetProcessHeap(), 0, uRetLen * sizeof(WCHAR));
-        if (!lpwstrRet) return MCIERR_OUT_OF_MEMORY;
+        if (!lpwstrRet) {
+            WARN("no memory\n");
+            HeapFree( GetProcessHeap(), 0, lpwstrCommand );
+            return MCIERR_OUT_OF_MEMORY;
+        }
     }
     ret = mciSendStringW(lpwstrCommand, lpwstrRet, uRetLen, hwndCallback);
     if (lpwstrRet)

dlls/winmm/wavemap/wavemap.c

@@ -166,6 +166,7 @@ static	DWORD	wodOpen(LPDWORD lpdwUser, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
     if (dwFlags & WAVE_MAPPED) {
 	if (lpDesc->uMappedDeviceID >= ndhi) {
             WARN("invalid parameter: dwFlags WAVE_MAPPED\n");
+            HeapFree(GetProcessHeap(), 0, wom);
             return MMSYSERR_INVALPARAM;
         }
 	ndlo = lpDesc->uMappedDeviceID;