diff options
| author | Rob Herring <rob.herring@calxeda.com> | 2012-11-07 17:59:14 -0600 |
|---|---|---|
| committer | Rob Herring <rob.herring@calxeda.com> | 2012-11-07 17:59:14 -0600 |
| commit | d3ad4a60a1b1448e59914eebefe1ccc8e64f9e2f (patch) | |
| tree | f0862d1905a599cdbad86fcc8816d86a6f33459f /sound/core/control.c | |
| parent | e095c0d122c09efabe7d4136ce77f72c636c4879 (diff) | |
| parent | e5c5f2adeb370559f4b221d57214db85858b786a (diff) | |
Merge remote-tracking branch 'arm-soc/devel/debug_ll_init' into debug_ll
Diffstat (limited to 'sound/core/control.c')
| -rw-r--r-- | sound/core/control.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/core/control.c b/sound/core/control.c index 7e86a5b9f3b5..8c7c2c9bba61 100644 --- a/sound/core/control.c +++ b/sound/core/control.c @@ -86,6 +86,7 @@ static int snd_ctl_open(struct inode *inode, struct file *file) write_lock_irqsave(&card->ctl_files_rwlock, flags); list_add_tail(&ctl->list, &card->ctl_files); write_unlock_irqrestore(&card->ctl_files_rwlock, flags); + snd_card_unref(card); return 0; __error: @@ -93,6 +94,8 @@ static int snd_ctl_open(struct inode *inode, struct file *file) __error2: snd_card_file_remove(card, file); __error1: + if (card) + snd_card_unref(card); return err; } @@ -1434,6 +1437,8 @@ static ssize_t snd_ctl_read(struct file *file, char __user *buffer, spin_unlock_irq(&ctl->read_lock); schedule(); remove_wait_queue(&ctl->change_sleep, &wait); + if (ctl->card->shutdown) + return -ENODEV; if (signal_pending(current)) return -ERESTARTSYS; spin_lock_irq(&ctl->read_lock); |