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Diffstat (limited to 'sound/core/init.c')
-rw-r--r--sound/core/init.c38
1 files changed, 16 insertions, 22 deletions
diff --git a/sound/core/init.c b/sound/core/init.c
index e3338d6071e..ac057341613 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -254,7 +254,7 @@ static int snd_disconnect_release(struct inode *inode, struct file *file)
if (likely(df))
return df->disconnected_f_op->release(inode, file);
- panic("%s(%p, %p) failed!", __FUNCTION__, inode, file);
+ panic("%s(%p, %p) failed!", __func__, inode, file);
}
static unsigned int snd_disconnect_poll(struct file * file, poll_table * wait)
@@ -311,6 +311,9 @@ int snd_card_disconnect(struct snd_card *card)
struct file *file;
int err;
+ if (!card)
+ return -EINVAL;
+
spin_lock(&card->files_lock);
if (card->shutdown) {
spin_unlock(&card->files_lock);
@@ -322,6 +325,7 @@ int snd_card_disconnect(struct snd_card *card)
/* phase 1: disable fops (user space) operations for ALSA API */
mutex_lock(&snd_card_mutex);
snd_cards[card->number] = NULL;
+ snd_cards_lock &= ~(1 << card->number);
mutex_unlock(&snd_card_mutex);
/* phase 2: replace file->f_op with special dummy operations */
@@ -360,6 +364,15 @@ int snd_card_disconnect(struct snd_card *card)
snd_printk(KERN_ERR "not all devices for card %i can be disconnected\n", card->number);
snd_info_card_disconnect(card);
+#ifndef CONFIG_SYSFS_DEPRECATED
+ if (card->card_dev) {
+ device_unregister(card->card_dev);
+ card->card_dev = NULL;
+ }
+#endif
+#ifdef CONFIG_PM
+ wake_up(&card->power_sleep);
+#endif
return 0;
}
@@ -401,33 +414,14 @@ static int snd_card_do_free(struct snd_card *card)
snd_printk(KERN_WARNING "unable to free card info\n");
/* Not fatal error */
}
-#ifndef CONFIG_SYSFS_DEPRECATED
- if (card->card_dev)
- device_unregister(card->card_dev);
-#endif
kfree(card);
return 0;
}
-static int snd_card_free_prepare(struct snd_card *card)
-{
- if (card == NULL)
- return -EINVAL;
- (void) snd_card_disconnect(card);
- mutex_lock(&snd_card_mutex);
- snd_cards[card->number] = NULL;
- snd_cards_lock &= ~(1 << card->number);
- mutex_unlock(&snd_card_mutex);
-#ifdef CONFIG_PM
- wake_up(&card->power_sleep);
-#endif
- return 0;
-}
-
int snd_card_free_when_closed(struct snd_card *card)
{
int free_now = 0;
- int ret = snd_card_free_prepare(card);
+ int ret = snd_card_disconnect(card);
if (ret)
return ret;
@@ -447,7 +441,7 @@ EXPORT_SYMBOL(snd_card_free_when_closed);
int snd_card_free(struct snd_card *card)
{
- int ret = snd_card_free_prepare(card);
+ int ret = snd_card_disconnect(card);
if (ret)
return ret;