alsactl: fix the nested iteration

There may be nested iterations for hw: card names.
Handle this card name in snd_card_iterator_sinit().

BugLink: https://github.com/alsa-project/alsa-lib/issues/142
Fixes: eefc2c6 ("alsactl: use card iterator functions for all card loops")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

diff --git a/alsactl/utils.c b/alsactl/utils.c
index c79fd951b8e00534e869538036562cf260edc64e..881b505396ae6e0887d4485e4673715dbafe35de 100644 (file)
--- a/alsactl/utils.c
+++ b/alsactl/utils.c
@@ -247,6 +247,8 @@ int snd_card_iterator_sinit(struct snd_card_iterator *iter, const char *cardname
        int cardno = -1;
 
        if (cardname) {
+               if (strncmp(cardname, "hw:", 3) == 0)
+                       cardname += 3;
                cardno = snd_card_get_index(cardname);
                if (cardno < 0) {
                        error("Cannot find soundcard '%s'...", cardname);