Date: 2008-11-01 00:28:30
From: Al Viro <viro@ZenIV.linux.org.uk>

    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>

[[ stefanr: non-ieee1394 parts omitted ]]

-------------------------- drivers/ieee1394/dv1394.c --------------------------
index 2f83543..965cfdb 100644
@@ -1828,9 +1828,6 @@ static int dv1394_release(struct inode *inode, struct file *file)
 	/* OK to free the DMA buffer, no more mappings can exist */
 	do_dv1394_shutdown(video, 1);
 
-	/* clean up async I/O users */
-	dv1394_fasync(-1, file, 0);
-
 	/* give someone else a turn */
 	clear_bit(0, &video->open);