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authorAl Viro <viro@ZenIV.linux.org.uk>2008-10-31 23:28:30 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2008-11-01 09:49:46 -0700
commit233e70f4228e78eb2f80dc6650f65d3ae3dbf17c (patch)
tree4e18fbe1851e6d2161b7f18265cb21f8a61e3ce7 /sound/core
parent3318a386e4ca68c76e0294363d29bdc46fcad670 (diff)
downloadop-kernel-dev-233e70f4228e78eb2f80dc6650f65d3ae3dbf17c.zip
op-kernel-dev-233e70f4228e78eb2f80dc6650f65d3ae3dbf17c.tar.gz
saner FASYNC handling on file close
As it is, all instances of ->release() for files that have ->fasync() need to remember to evict file from fasync lists; forgetting that creates a hole and we actually have a bunch that *does* forget. So let's keep our lives simple - let __fput() check FASYNC in file->f_flags and call ->fasync() there if it's been set. And lose that crap in ->release() instances - leaving it there is still valid, but we don't have to bother anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'sound/core')
-rw-r--r--sound/core/control.c1
-rw-r--r--sound/core/init.c5
-rw-r--r--sound/core/pcm_native.c1
-rw-r--r--sound/core/timer.c1
4 files changed, 4 insertions, 4 deletions
diff --git a/sound/core/control.c b/sound/core/control.c
index b0bf426..636b3b5 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -113,7 +113,6 @@ static int snd_ctl_release(struct inode *inode, struct file *file)
unsigned int idx;
ctl = file->private_data;
- fasync_helper(-1, file, 0, &ctl->fasync);
file->private_data = NULL;
card = ctl->card;
write_lock_irqsave(&card->ctl_files_rwlock, flags);
diff --git a/sound/core/init.c b/sound/core/init.c
index ef2352c2..b47ff8b 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -264,8 +264,11 @@ static int snd_disconnect_release(struct inode *inode, struct file *file)
}
spin_unlock(&shutdown_lock);
- if (likely(df))
+ if (likely(df)) {
+ if ((file->f_flags & FASYNC) && df->disconnected_f_op->fasync)
+ df->disconnected_f_op->fasync(-1, file, 0);
return df->disconnected_f_op->release(inode, file);
+ }
panic("%s(%p, %p) failed!", __func__, inode, file);
}
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index aef18682..a789efc 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2169,7 +2169,6 @@ static int snd_pcm_release(struct inode *inode, struct file *file)
if (snd_BUG_ON(!substream))
return -ENXIO;
pcm = substream->pcm;
- fasync_helper(-1, file, 0, &substream->runtime->fasync);
mutex_lock(&pcm->open_mutex);
snd_pcm_release_substream(substream);
kfree(pcm_file);
diff --git a/sound/core/timer.c b/sound/core/timer.c
index e582fac..c584408 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -1263,7 +1263,6 @@ static int snd_timer_user_release(struct inode *inode, struct file *file)
if (file->private_data) {
tu = file->private_data;
file->private_data = NULL;
- fasync_helper(-1, file, 0, &tu->fasync);
if (tu->timeri)
snd_timer_close(tu->timeri);
kfree(tu->queue);
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