From: Johan Hovold <jhovold@gmail.com>
Date: Wed, 7 Oct 2009 18:05:06 +0000 (+0200)
Subject: USB: ftdi_sio: clean up read completion handler
X-Git-Tag: v2.6.32-rc4~4^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e63e278b4d2d867893962d3c7cd13a3a24ceb3f1;p=pandora-kernel.git

USB: ftdi_sio: clean up read completion handler

Remove superfluous error checks in completion handler:

 - No need to check private data and urb pointers as we check urb-status
   before dereferencing priv (which is not freed until urb has been killed
   on close).
 - No need to check tty as it is checked again when processing.
 - No need to check urb->number_of_packets on bulk urb.

Note that both private data and tty are checked again before processing
(possibly from work queue which also is cancelled on close).

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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