Merge tag 'usb-serial-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git...

Merge tag 'usb-serial-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus

Johan writes:

USB-serial fixes for v4.11-rc2

Here's a fix for a digi_acceleport regression in -rc1, and some fixes
for long-standing issues in three other drivers, including a
NULL-pointer dereference and a couple of information leaks that could be
triggered by a malicious device.

Signed-off-by: Johan Hovold <johan@kernel.org>