diff options
| author |   Ingo Molnar <mingo@kernel.org> | 2012-12-08 15:25:06 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-12-08 15:25:06 +0100 |
| commit | f0b9abfb044649bc452fb2fb975ff2fd599cc6a3 (patch) | |
| tree | 7800081c5cb16a4dfee1e57a70f3be90f7b50d9a /sound/core/control.c | |
| parent | Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core (diff) | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net (diff) | |
| download | wireguard-linux-f0b9abfb044649bc452fb2fb975ff2fd599cc6a3.tar.xz wireguard-linux-f0b9abfb044649bc452fb2fb975ff2fd599cc6a3.zip | |
Merge branch 'linus' into perf/core
Conflicts:
tools/perf/Makefile
tools/perf/builtin-test.c
tools/perf/perf.h
tools/perf/tests/parse-events.c
tools/perf/util/evsel.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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); |