ALSA: hda - Add exception for volume-knob in snd_hda_get_connections()
Volume-knob widgets may have connections even if they have no CONN_LIST cap bit. Allow the query exceptionally in snd_hda_get_connections(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
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@ -301,12 +301,15 @@ int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
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unsigned int parm;
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int i, conn_len, conns;
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unsigned int shift, num_elems, mask;
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unsigned int wcaps;
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hda_nid_t prev_nid;
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if (snd_BUG_ON(!conn_list || max_conns <= 0))
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return -EINVAL;
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if ((get_wcaps(codec, nid) & AC_WCAP_CONN_LIST) == 0) {
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wcaps = get_wcaps(codec, nid);
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if (!(wcaps & AC_WCAP_CONN_LIST) &&
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get_wcaps_type(wcaps) != AC_WID_VOL_KNB) {
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snd_printk(KERN_WARNING "hda_codec: "
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"connection list not available for 0x%x\n", nid);
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return -EINVAL;
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