Re: [PATCH] Input: cm109 - fix checking return value of usb_control_msg
On Thu, Aug 25, 2011 at 10:06:50PM +0800, Axel Lin wrote: > If successful, usb_control_msg returns the number of bytes transferred, > otherwise a negative error number. > > Signed-off-by: Axel Lin <axel.lin@gmail.com>