diff options
| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2015-02-21 23:55:00 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2015-02-23 09:11:24 +0100 |
| commit | dec84316dd53c90e93b4ee849483bd4bd1e9a585 (patch) | |
| tree | 3725938633e83ba9bf303e171323bbb911a0ba9f /sound/firewire/bebob | |
| parent | d23c2cc4485d10f0cedfef99dd2961d9652b1b3f (diff) | |
| download | op-kernel-dev-dec84316dd53c90e93b4ee849483bd4bd1e9a585.zip op-kernel-dev-dec84316dd53c90e93b4ee849483bd4bd1e9a585.tar.gz | |
ALSA: fireworks/bebob/dice/oxfw: make it possible to shutdown safely
A part of these drivers, especially BeBoB driver, are programmed to wait
some events. Thus the drivers should not destroy any data in .remove()
context.
This commit moves some destructors from 'struct fw_driver.remove()' to
'struct snd_card.private_free()' to shutdown safely.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: <stable@vger.kernel.org> # 3.19+
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/bebob')
| -rw-r--r-- | sound/firewire/bebob/bebob.c | 10 | ||||
| -rw-r--r-- | sound/firewire/bebob/bebob_stream.c | 4 |
2 files changed, 6 insertions, 8 deletions
diff --git a/sound/firewire/bebob/bebob.c b/sound/firewire/bebob/bebob.c index b612599..611b7da 100644 --- a/sound/firewire/bebob/bebob.c +++ b/sound/firewire/bebob/bebob.c @@ -127,8 +127,11 @@ bebob_card_free(struct snd_card *card) { struct snd_bebob *bebob = card->private_data; + snd_bebob_stream_destroy_duplex(bebob); fw_unit_put(bebob->unit); + kfree(bebob->maudio_special_quirk); + if (bebob->card_index >= 0) { mutex_lock(&devices_mutex); clear_bit(bebob->card_index, devices_used); @@ -314,10 +317,9 @@ static void bebob_remove(struct fw_unit *unit) if (bebob == NULL) return; - kfree(bebob->maudio_special_quirk); - - snd_bebob_stream_destroy_duplex(bebob); - snd_card_disconnect(bebob->card); + /* Awake bus-reset waiters. */ + if (!completion_done(&bebob->bus_reset)) + complete_all(&bebob->bus_reset); /* No need to wait for releasing card object in this context. */ snd_card_free_when_closed(bebob->card); diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index fcca3ee..98e4fc8 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -716,14 +716,10 @@ void snd_bebob_stream_update_duplex(struct snd_bebob *bebob) */ void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob) { - mutex_lock(&bebob->mutex); - amdtp_stream_destroy(&bebob->rx_stream); amdtp_stream_destroy(&bebob->tx_stream); destroy_both_connections(bebob); - - mutex_unlock(&bebob->mutex); } /* |
