Merge tag 'usb-serial-3.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...

Johan writes:

USB-serial fixes for v3.18-rc5

Here are a few fixes for reported problems including a possible
null-deref on probe with keyspan, a misbehaving modem, and a couple of
issues with the USB console.

Some new device IDs are also added.

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