From e31d5a05948e4478ba8396063d1e1f39880928e2 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 7 Apr 2010 16:50:00 -0700 Subject: [PATCH] caif: tty's are kref objects so take a reference I don't think this can be abused in this case but do things properly. Signed-off-by: Alan Cox Signed-off-by: David S. Miller --- drivers/net/caif/caif_serial.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/caif/caif_serial.c b/drivers/net/caif/caif_serial.c index c669ec37483b..38c0186cfbc2 100644 --- a/drivers/net/caif/caif_serial.c +++ b/drivers/net/caif/caif_serial.c @@ -319,7 +319,7 @@ static int ldisc_open(struct tty_struct *tty) sprintf(name, "cf%s", tty->name); dev = alloc_netdev(sizeof(*ser), name, caifdev_setup); ser = netdev_priv(dev); - ser->tty = tty; + ser->tty = tty_kref_get(tty); ser->dev = dev; debugfs_init(ser, tty); tty->receive_room = N_TTY_BUF_SIZE; @@ -352,6 +352,7 @@ static void ldisc_close(struct tty_struct *tty) unregister_netdevice(ser->dev); list_del(&ser->node); debugfs_deinit(ser); + tty_kref_put(ser->tty); if (!islocked) rtnl_unlock(); } -- 2.20.1