Merge 4.2-rc4 into usb-next

We want the USB fixes that went into that release in this branch as
well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/usb/core/hcd.c
Simple merge

diff --cc drivers/usb/core/hub.c
Simple merge

diff --cc drivers/usb/host/xhci.c
Simple merge