WSS: Fix warning

src/sound/snd_wss.c

@@ -79,14 +79,14 @@ static void
 wss_get_buffer(int32_t *buffer, int len, void *priv)
 {
     wss_t *wss = (wss_t *) priv;
-    int32_t *opl_buf;
+    int32_t *opl_buf = NULL;
 
     if (wss->opl_enabled)
         opl_buf = wss->opl.update(wss->opl.priv);
 
     ad1848_update(&wss->ad1848);
     for (int c = 0; c < len * 2; c++) {
-        if (wss->opl_enabled)
+        if (opl_buf)
             buffer[c] += opl_buf[c];
         buffer[c] += wss->ad1848.buffer[c] / 2;
     }