From: David Vrabel <david.vrabel@csr.com>
Date: Wed, 8 Apr 2009 17:36:31 +0000 (+0000)
Subject: USB: whci-hcd: check return value of usb_hcd_link_urb_to_ep()
X-Git-Tag: v2.6.30-rc3~60^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f720af91ec2c67e9a1abbd935570f4b4e1f0dd54;p=pandora-kernel.git

USB: whci-hcd: check return value of usb_hcd_link_urb_to_ep()

Check the return value of usb_hcd_link_urb_to_ep() and do not add the
urb to the ASL/PZL if it returns an error.

Omitting the check results in urbs that appear to be submitted
successfully but then cannot be unliked (because
usb_hcd_check_unlink_urb() returns an error).  This can cause khubd (for
example) to block forever in usb_kill_urb().

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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