ipack: ipoctal: fix tty registration race
authorJohan Hovold <johan@kernel.org>
Fri, 17 Sep 2021 11:46:18 +0000 (13:46 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 27 Sep 2021 15:38:49 +0000 (17:38 +0200)
commit65c001df517a7bf9be8621b53d43c89f426ce8d6
treece020193ec4e3317f2dd055cb4f4f0274bfdef32
parenta89936cce87d60766a75732a9e7e25c51164f47c
ipack: ipoctal: fix tty registration race

Make sure to set the tty class-device driver data before registering the
tty to avoid having a racing open() dereference a NULL pointer.

Fixes: 9c1d784afc6f ("Staging: ipack/devices/ipoctal: Get rid of ipoctal_list.")
Cc: stable@vger.kernel.org # 3.7
Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20210917114622.5412-3-johan@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/ipack/devices/ipoctal.c