ALSA: core: Remove superfluous exit calls for proc entries

Since each proc entry is freed automatically by the parent, we don't
have to take care of its life cycle any longer.  This allows us to
reduce a few more lines of codes.
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

include/sound/core.h

@@ -224,16 +224,13 @@ void *snd_lookup_oss_minor_data(unsigned int minor, int type);
 #endif
 
 int snd_minor_info_init(void);
-int snd_minor_info_done(void);
 
 /* sound_oss.c */
 
 #ifdef CONFIG_SND_OSSEMUL
 int snd_minor_info_oss_init(void);
-int snd_minor_info_oss_done(void);
 #else
 static inline int snd_minor_info_oss_init(void) { return 0; }
-static inline int snd_minor_info_oss_done(void) { return 0; }
 #endif
 
 /* memory.c */
@@ -262,7 +259,6 @@ int snd_card_free_when_closed(struct snd_card *card);
 void snd_card_set_id(struct snd_card *card, const char *id);
 int snd_card_register(struct snd_card *card);
 int snd_card_info_init(void);
-int snd_card_info_done(void);
 int snd_card_add_dev_attr(struct snd_card *card,
 			  const struct attribute_group *group);
 int snd_component_add(struct snd_card *card, const char *component);

sound/core/info.c

@@ -495,9 +495,6 @@ int __init snd_info_init(void)
 
 int __exit snd_info_done(void)
 {
-	snd_card_info_done();
-	snd_minor_info_oss_done();
-	snd_minor_info_done();
 	snd_info_free_entry(snd_proc_root);
 	return 0;
 }

sound/core/init.c

@@ -783,8 +783,6 @@ int snd_card_register(struct snd_card *card)
 EXPORT_SYMBOL(snd_card_register);
 
 #ifdef CONFIG_PROC_FS
-static struct snd_info_entry *snd_card_info_entry;
-
 static void snd_card_info_read(struct snd_info_entry *entry,
 			       struct snd_info_buffer *buffer)
 {
@@ -810,7 +808,6 @@ static void snd_card_info_read(struct snd_info_entry *entry,
 }
 
 #ifdef CONFIG_SND_OSSEMUL
-
 void snd_card_info_read_oss(struct snd_info_buffer *buffer)
 {
 	int idx, count;
@@ -832,7 +829,6 @@ void snd_card_info_read_oss(struct snd_info_buffer *buffer)
 #endif
 
 #ifdef MODULE
-static struct snd_info_entry *snd_card_module_info_entry;
 static void snd_card_module_info_read(struct snd_info_entry *entry,
 				      struct snd_info_buffer *buffer)
 {
@@ -861,7 +857,6 @@ int __init snd_card_info_init(void)
 		snd_info_free_entry(entry);
 		return -ENOMEM;
 	}
-	snd_card_info_entry = entry;
 
 #ifdef MODULE
 	entry = snd_info_create_module_entry(THIS_MODULE, "modules", NULL);
@@ -869,23 +864,11 @@ int __init snd_card_info_init(void)
 		entry->c.text.read = snd_card_module_info_read;
 		if (snd_info_register(entry) < 0)
 			snd_info_free_entry(entry);
-		else
-			snd_card_module_info_entry = entry;
 	}
 #endif
 
 	return 0;
 }
-
-int __exit snd_card_info_done(void)
-{
-	snd_info_free_entry(snd_card_info_entry);
-#ifdef MODULE
-	snd_info_free_entry(snd_card_module_info_entry);
-#endif
-	return 0;
-}
-
 #endif /* CONFIG_PROC_FS */
 
 /**

sound/core/sound.c

@@ -334,9 +334,6 @@ EXPORT_SYMBOL(snd_unregister_device);
 /*
  *  INFO PART
  */
-
-static struct snd_info_entry *snd_minor_info_entry;
-
 static const char *snd_device_type_name(int type)
 {
 	switch (type) {
@@ -396,13 +393,6 @@ int __init snd_minor_info_init(void)
 			entry = NULL;
 		}
 	}
-	snd_minor_info_entry = entry;
-	return 0;
-}
-
-int __exit snd_minor_info_done(void)
-{
-	snd_info_free_entry(snd_minor_info_entry);
 	return 0;
 }
 #endif /* CONFIG_PROC_FS */

sound/core/sound_oss.c

@@ -214,9 +214,6 @@ EXPORT_SYMBOL(snd_unregister_oss_device);
  */
 
 #ifdef CONFIG_PROC_FS
-
-static struct snd_info_entry *snd_minor_info_oss_entry;
-
 static const char *snd_oss_device_type_name(int type)
 {
 	switch (type) {
@@ -265,18 +262,9 @@ int __init snd_minor_info_oss_init(void)
 	entry = snd_info_create_module_entry(THIS_MODULE, "devices", snd_oss_root);
 	if (entry) {
 		entry->c.text.read = snd_minor_info_oss_read;
-		if (snd_info_register(entry) < 0) {
+		if (snd_info_register(entry) < 0)
 			snd_info_free_entry(entry);
-			entry = NULL;
-		}
 	}
-	snd_minor_info_oss_entry = entry;
-	return 0;
-}
-
-int __exit snd_minor_info_oss_done(void)
-{
-	snd_info_free_entry(snd_minor_info_oss_entry);
 	return 0;
 }
 #endif /* CONFIG_PROC_FS */