axel lin 7b727acc41 Input: cm109 - fix checking return value of usb_control_msg ...

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>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

2011-08-26 23:20:30 -07:00

23 KiB

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