From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 24 Jul 2013 21:09:04 +0000 (-0700)
Subject: staging: comedi: usbdux: cleanup the (*detach)
X-Git-Tag: v3.12-rc1~183^2~591
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ff14ee8a6e4d9aca3098c47e876bc43f9e4cbe5;p=pandora-kernel.git

staging: comedi: usbdux: cleanup the (*detach)

The tidy_up() function is only called by the (*detach). That function
unlinks any running urbs and frees all the allocated urbs and buffers
used by the driver.

Rename tidy_up() to usbdux_free_usb_buffers() and move all the parts
that don't deal with the freeing of the buffers directly into the
(*detach).

Also, remove all the unnecessary clearing of the pointers. The comedi
core will kfree() the private data after calling the (*detach).

Foe aesthetic reasons, do the kfree()'ing of the buffers and urbs in
the reverse order that they were allocated.

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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