- snprintf(name, sizeof(name), "%s Playback Volume", pfx);
- err = add_control(spec, ALC_CTL_WIDGET_VOL, name, vol_val);
- if (err < 0)
- return err;
+ if (!(*vol_bits & (1 << nid_vol))) {
+ /* first control for the volume widget */
+ snprintf(name, sizeof(name), "%s Playback Volume", pfx);
+ err = add_control(spec, ALC_CTL_WIDGET_VOL, name, vol_val);
+ if (err < 0)
+ return err;
+ *vol_bits |= (1 << nid_vol);
+ }