[PATCH 0/2] usb: core: return -EAGAIN on usb_* functions reentrance

[Peter Mamonov]

The second patch of this patch set adds reentrance detection to 
the the following functions: usb_submit_int_msg, usb_control_msg and
usb_bulk_msg. These functions will return -EAGAIN if reentered. 
Other public usb_* functions call one of these three functions.
This patch enables one to use regular *delay() functions
throughout the ehci-hcd.c.

The first patch adds check for -EAGAIN return value to the usb keyboard
driver. The driver will skip keyboard poll upon getting this error value
from either usb_submit_int_msg() or usb_get_report() functions.

Peter Mamonov (2):
	input: usb_kbd: skip poll on -EAGAIN error
	usb: core: return -EAGAIN on usb_* functions reentrance