diff options
| author | Takashi Iwai <tiwai@suse.de> | 2006-06-23 14:38:23 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-09-23 10:36:58 +0200 |
| commit | c461482c8072bb073e6146db320d3da85cdc89ad (patch) | |
| tree | 3b69cfd292a488a8cb57ac9b040bd2b1b1a1e26d /sound/core/oss/mixer_oss.c | |
| parent | 746d4a02e68499fc6c1f8d0c43d2271853ade181 (diff) | |
[ALSA] Unregister device files at disconnection
Orignally proposed by Sam Revitch <sam.revitch@gmail.com>.
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 <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/core/oss/mixer_oss.c')
| -rw-r--r-- | sound/core/oss/mixer_oss.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c index 00c95def95a..f4c67042e3a 100644 --- a/sound/core/oss/mixer_oss.c +++ b/sound/core/oss/mixer_oss.c @@ -1310,21 +1310,19 @@ static int snd_mixer_oss_notify_handler(struct snd_card *card, int cmd) card->mixer_oss = mixer; snd_mixer_oss_build(mixer); snd_mixer_oss_proc_init(mixer); - } else if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) { - mixer = card->mixer_oss; - if (mixer == NULL || !mixer->oss_dev_alloc) - return 0; - snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); - mixer->oss_dev_alloc = 0; - } else { /* free */ + } else { mixer = card->mixer_oss; if (mixer == NULL) return 0; + if (mixer->oss_dev_alloc) { #ifdef SNDRV_OSS_INFO_DEV_MIXERS - snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); + snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number); #endif - if (mixer->oss_dev_alloc) snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0); + mixer->oss_dev_alloc = 0; + } + if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) + return 0; snd_mixer_oss_proc_done(mixer); return snd_mixer_oss_free1(mixer); } |