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| author | Jonathan Corbet <corbet@lwn.net> | 2008-06-20 01:50:37 +0400 |
|---|---|---|
| committer | Jonathan Corbet <corbet@lwn.net> | 2008-07-03 01:06:27 +0400 |
| commit | 9d319522576ce0b2fd023a965445f9c3739ee6f1 (patch) | |
| tree | c4e2f1634d5f54a4ee3a77adf62cb2556169c239 | |
| parent | 743115ee05f09f356d86763316acf627a7f5a6b3 (diff) | |
| download | linux-9d319522576ce0b2fd023a965445f9c3739ee6f1.tar.xz | |
tun: fasync BKL pushdown
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
| -rw-r--r-- | drivers/net/tun.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index ce5af2aa8843..4c0c5972a489 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -782,18 +782,21 @@ static int tun_chr_fasync(int fd, struct file *file, int on) DBG(KERN_INFO "%s: tun_chr_fasync %d\n", tun->dev->name, on); + lock_kernel(); if ((ret = fasync_helper(fd, file, on, &tun->fasync)) < 0) - return ret; + goto out; if (on) { ret = __f_setown(file, task_pid(current), PIDTYPE_PID, 0); if (ret) - return ret; + goto out; tun->flags |= TUN_FASYNC; } else tun->flags &= ~TUN_FASYNC; - - return 0; + ret = 0; +out: + unlock_kernel(); + return ret; } static int tun_chr_open(struct inode *inode, struct file * file) |