From c461482c8072bb073e6146db320d3da85cdc89ad Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 23 Jun 2006 14:38:23 +0200 Subject: [ALSA] Unregister device files at disconnection Orignally proposed by Sam Revitch . Unregister device files at disconnection to avoid the futher accesses. Also, the dev_unregister callback is removed and replaced with the combination of disconnect + free. A new function snd_card_free_when_closed() is introduced, which is used in USB disconnect callback. Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- include/sound/core.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/sound/core.h') diff --git a/include/sound/core.h b/include/sound/core.h index bab3ff457e4..cf4001cf624 100644 --- a/include/sound/core.h +++ b/include/sound/core.h @@ -71,7 +71,6 @@ struct snd_device_ops { int (*dev_free)(struct snd_device *dev); int (*dev_register)(struct snd_device *dev); int (*dev_disconnect)(struct snd_device *dev); - int (*dev_unregister)(struct snd_device *dev); }; struct snd_device { @@ -131,6 +130,7 @@ struct snd_card { state */ spinlock_t files_lock; /* lock the files for this card */ int shutdown; /* this card is going down */ + int free_on_last_close; /* free in context of file_release */ wait_queue_head_t shutdown_sleep; struct work_struct free_workq; /* for free in workqueue */ struct device *dev; @@ -244,6 +244,7 @@ struct snd_card *snd_card_new(int idx, const char *id, struct module *module, int extra_size); int snd_card_disconnect(struct snd_card *card); int snd_card_free(struct snd_card *card); +int snd_card_free_when_closed(struct snd_card *card); int snd_card_free_in_thread(struct snd_card *card); int snd_card_register(struct snd_card *card); int snd_card_info_init(void); -- cgit v1.2.3-70-g09d2