USB: cdc-acm: fix invalid user-pointer check
authorJohan Hovold <johan@kernel.org>
Tue, 8 Nov 2016 12:28:23 +0000 (13:28 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 10 Nov 2016 12:16:57 +0000 (13:16 +0100)
commit04cbf3832bbe21ac473e6b79571fce0c7f10a087
treeb03542fc91cc1ec9ea16051a6b3f267b9a4bfb19
parent11f107f708fd853bf48d5b0f8bb886e42fa009e3
USB: cdc-acm: fix invalid user-pointer check

Drop invalid user-pointer check from TIOCGSERIAL handler.

A NULL-pointer can be valid in user space and copy_to_user() takes care
of sanity checking.

Signed-off-by: Johan Hovold <johan@kernel.org>
Acked-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/class/cdc-acm.c