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| author | Alan Cox <alan@linux.intel.com> | 2009-11-30 13:18:40 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 15:18:08 -0800 |
| commit | 38c70b27f9502c31c1d0c29676275f7362cdb0d9 (patch) | |
| tree | f7545467d3c060a9df2940f731524b74d2f8c2dd | |
| parent | f18f9498e90327b9b0e245e191029e6e1996d203 (diff) | |
| download | linux-stable-38c70b27f9502c31c1d0c29676275f7362cdb0d9.tar.gz linux-stable-38c70b27f9502c31c1d0c29676275f7362cdb0d9.tar.bz2 linux-stable-38c70b27f9502c31c1d0c29676275f7362cdb0d9.zip | |
tty: Push the bkl down a bit in the hangup code
We know that the redirect field is handled via its own locking in all
places
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/char/tty_io.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index c408c81c06a0..cc941a3504d7 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -505,8 +505,6 @@ static void do_tty_hangup(struct work_struct *work) if (!tty) return; - /* inuse_filps is protected by the single kernel lock */ - lock_kernel(); spin_lock(&redirect_lock); if (redirect && redirect->private_data == tty) { @@ -515,6 +513,8 @@ static void do_tty_hangup(struct work_struct *work) } spin_unlock(&redirect_lock); + /* inuse_filps is protected by the single kernel lock */ + lock_kernel(); check_tty_count(tty, "do_tty_hangup"); file_list_lock(); /* This breaks for file handles being sent over AF_UNIX sockets ? */ |