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author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2018-10-10 15:35:02 +0900 |
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committer | Takashi Iwai <tiwai@suse.de> | 2018-10-10 12:11:50 +0200 |
commit | 3babca4555b20fc80aff4776662fb237257d9afd (patch) | |
tree | 10a967c09572ade5f331a61eae58b7a92e2666eb /sound/firewire/bebob | |
parent | 873608dc6b5da7a2571419bfa10e0d088d39cee0 (diff) | |
download | linux-3babca4555b20fc80aff4776662fb237257d9afd.tar.gz linux-3babca4555b20fc80aff4776662fb237257d9afd.tar.bz2 linux-3babca4555b20fc80aff4776662fb237257d9afd.zip |
ALSA: firewire: simplify cleanup process when failing to register sound card
In former commits, .private_free callback releases resources just for
data transmission. This release function can be called without the
resources are actually allocated in error paths.
This commit applies a small refactoring to clean up codes in error
paths.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/bebob')
-rw-r--r-- | sound/firewire/bebob/bebob.c | 27 |
1 files changed, 7 insertions, 20 deletions
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c index 3bc68499974a..672d13488454 100644 --- a/sound/firewire/bebob/bebob.c +++ b/sound/firewire/bebob/bebob.c @@ -126,8 +126,11 @@ end: return err; } -static void bebob_free(struct snd_bebob *bebob) +static void +bebob_card_free(struct snd_card *card) { + struct snd_bebob *bebob = card->private_data; + mutex_lock(&devices_mutex); clear_bit(bebob->card_index, devices_used); mutex_unlock(&devices_mutex); @@ -135,18 +138,6 @@ static void bebob_free(struct snd_bebob *bebob) snd_bebob_stream_destroy_duplex(bebob); } -/* - * This module releases the FireWire unit data after all ALSA character devices - * are released by applications. This is for releasing stream data or finishing - * transactions safely. Thus at returning from .remove(), this module still keep - * references for the unit. - */ -static void -bebob_card_free(struct snd_card *card) -{ - bebob_free(card->private_data); -} - static const struct snd_bebob_spec * get_saffire_spec(struct fw_unit *unit) { @@ -202,6 +193,9 @@ do_registration(struct work_struct *work) set_bit(card_index, devices_used); mutex_unlock(&devices_mutex); + bebob->card->private_free = bebob_card_free; + bebob->card->private_data = bebob; + err = name_device(bebob); if (err < 0) goto error; @@ -241,17 +235,10 @@ do_registration(struct work_struct *work) if (err < 0) goto error; - /* - * After registered, bebob instance can be released corresponding to - * releasing the sound card instance. - */ - bebob->card->private_free = bebob_card_free; - bebob->card->private_data = bebob; bebob->registered = true; return; error: - snd_bebob_stream_destroy_duplex(bebob); snd_card_free(bebob->card); dev_info(&bebob->unit->device, "Sound card registration failed: %d\n", err); |