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alsactl: Do not access other cards than specified for init

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When the global state does not exist, alsactl tries to
initialize all soundcards. It is not good when alsactl
is called multiple times from udev. Also, selinux can deny
access to non-existent devices.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2012-05-09 08:45:47 +02:00
parent 05d3bed5cd
commit f7eb87ddc7
1 changed files with 12 additions and 2 deletions
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14
alsactl/state.c
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@ -1646,13 +1646,23 @@ int load_state(const char *file, const char *initfile, const char *cardname,
error("Cannot open %s for reading: %s", file, snd_strerror(err));
finalerr = err;
card = -1;
if (cardname) {
card = snd_card_get_index(cardname);
if (card < 0) {
error("Cannot find soundcard '%s'...", cardname);
return -ENODEV;
}
goto single;
} else {
card = -1;
}
/* find each installed soundcards */
while (1) {
while (!cardname) {
if (snd_card_next(&card) < 0)
break;
if (card < 0)
break;
single:
first = 0;
if (!do_init)
break;