staging: comedi: dt9812: tidy up usb_bulk_msg() calls

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To clarify the code, add a local variable for the struct usb_device
pointer used in the usb_blk_msg() calls.

It's not necessary to initialize the 'count' when writing to the
usb device. The 'count' variable is used to get back the number
of bytes actually sent.

Just return the usb_blk_msg() result when it is the last operation
in a function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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H Hartley Sweeten 2013-05-14 14:22:39 -07:00 • committed by Greg Kroah-Hartman

parent 1415003fe6

commit 0ec77d3499

1 changed files with 27 additions and 38 deletions

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drivers/staging/comedi/drivers/dt9812.c

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