On 10/05/2012 02:01 AM, Sasha Levin wrote:
> Commit 9c650ffc ("TTY: ircomm_tty, add tty install") split _open() to
> _install() and _open(). It also moved the initialization of driver_data
> out of open(), but never added it to install() - causing a NULL ptr
> deref whenever the driver was used.
>
> Signed-off-by: Sasha Levin <sasha.le...@oracle.com>
> ---
> net/irda/ircomm/ircomm_tty.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/net/irda/ircomm/ircomm_tty.c b/net/irda/ircomm/ircomm_tty.c
> index 95a3a7a..496ce2c 100644
> --- a/net/irda/ircomm/ircomm_tty.c
> +++ b/net/irda/ircomm/ircomm_tty.c
> @@ -421,6 +421,8 @@ static int ircomm_tty_install(struct tty_driver *driver,
> struct tty_struct *tty)
> hashbin_insert(ircomm_tty, (irda_queue_t *) self, line, NULL);
> }
>
> + tty->driver_data = self;
> +
> return tty_port_install(&self->port, driver, tty);
Yes, a good catch.
Acked-by: Jiri Slaby <jsl...@suse.cz>
thanks,
--
js
suse labs
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