From a0dca822e923e605dbdc2f6ed4fcd96b74df9258 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 23 Apr 2015 10:56:21 +0200 Subject: [PATCH] ALSA: core: Clean up OSS proc file management A few minor cleanups: - Move the call of snd_info_minor_register() into snd_info_init() so that we can call all proc-related stuff in a shot - Add missing __init prefix to snd_info_minor_register() - Return an error properly from snd_oss_info_register() - Drop snd_info_minor_unregister() that is superfluous now Acked-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- include/sound/info.h | 4 +--- sound/core/info.c | 3 ++- sound/core/info_oss.c | 25 +++++++------------------ sound/core/sound.c | 2 -- 4 files changed, 10 insertions(+), 24 deletions(-) diff --git a/include/sound/info.h b/include/sound/info.h index 3e2fda3c75ee..16269951bafc 100644 --- a/include/sound/info.h +++ b/include/sound/info.h @@ -94,10 +94,8 @@ struct snd_info_entry { #if defined(CONFIG_SND_OSSEMUL) && defined(CONFIG_PROC_FS) int snd_info_minor_register(void); -int snd_info_minor_unregister(void); #else -#define snd_info_minor_register() /* NOP */ -#define snd_info_minor_unregister() /* NOP */ +#define snd_info_minor_register() 0 #endif diff --git a/sound/core/info.c b/sound/core/info.c index f8bdd9b6f322..c8a413d6cc9b 100644 --- a/sound/core/info.c +++ b/sound/core/info.c @@ -479,7 +479,8 @@ int __init snd_info_init(void) if (snd_info_version_init() < 0 || snd_minor_info_init() < 0 || snd_minor_info_oss_init() < 0 || - snd_card_info_init() < 0) + snd_card_info_init() < 0 || + snd_info_minor_register() < 0) goto error; return 0; diff --git a/sound/core/info_oss.c b/sound/core/info_oss.c index bd4d2c6233c2..1478c8dfd473 100644 --- a/sound/core/info_oss.c +++ b/sound/core/info_oss.c @@ -35,7 +35,6 @@ static DEFINE_MUTEX(strings); static char *snd_sndstat_strings[SNDRV_CARDS][SNDRV_OSS_INFO_DEV_COUNT]; -static struct snd_info_entry *snd_sndstat_proc_entry; int snd_oss_info_register(int dev, int num, char *string) { @@ -110,25 +109,15 @@ static void snd_sndstat_proc_read(struct snd_info_entry *entry, snd_sndstat_show_strings(buffer, "Mixers", SNDRV_OSS_INFO_DEV_MIXERS); } -int snd_info_minor_register(void) +int __init snd_info_minor_register(void) { struct snd_info_entry *entry; memset(snd_sndstat_strings, 0, sizeof(snd_sndstat_strings)); - if ((entry = snd_info_create_module_entry(THIS_MODULE, "sndstat", snd_oss_root)) != NULL) { - entry->c.text.read = snd_sndstat_proc_read; - if (snd_info_register(entry) < 0) { - snd_info_free_entry(entry); - entry = NULL; - } - } - snd_sndstat_proc_entry = entry; - return 0; -} - -int snd_info_minor_unregister(void) -{ - snd_info_free_entry(snd_sndstat_proc_entry); - snd_sndstat_proc_entry = NULL; - return 0; + entry = snd_info_create_module_entry(THIS_MODULE, "sndstat", + snd_oss_root); + if (!entry) + return -ENOMEM; + entry->c.text.read = snd_sndstat_proc_read; + return snd_info_register(entry); /* freed in error path */ } diff --git a/sound/core/sound.c b/sound/core/sound.c index 8fc402e4ff35..e5d37bd7c226 100644 --- a/sound/core/sound.c +++ b/sound/core/sound.c @@ -409,7 +409,6 @@ static int __init alsa_sound_init(void) unregister_chrdev(major, "alsa"); return -ENOMEM; } - snd_info_minor_register(); #ifndef MODULE pr_info("Advanced Linux Sound Architecture Driver Initialized.\n"); #endif @@ -418,7 +417,6 @@ static int __init alsa_sound_init(void) static void __exit alsa_sound_exit(void) { - snd_info_minor_unregister(); snd_info_done(); unregister_chrdev(major, "alsa"); } -- 2.39.2