netdev - Re: a new problem with the hso driver

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Message-Id: <200809120118.26815.oliver@neukum.org>
Date:	Fri, 12 Sep 2008 01:18:26 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Denis Joseph Barrow <D.Barow@...ion.com>,
	Linux USB kernel mailing list <linux-usb@...r.kernel.org>,
	Linux netdev Mailing list <netdev@...r.kernel.org>,
	"Greg Kroah-Hartman" <gregkh@...e.de>,
	Andrew Bird <ajb@...eresystems.co.uk>
Subject: Re: a new problem with the hso driver


> > On a slightly related issue
> > we get an error -22 ie -EINVAL from usb_submit_urb
> > this though I haven't investigated properly appears to happen when the device is suspended

suspend? Are you sure it doesn't come from resume?

BTW:
	if (serial->shared_int) {
		mutex_lock(&serial->shared_int->shared_int_lock);
		if (serial->shared_int->use_count &&
		    (--serial->shared_int->use_count == 0)) {

This code deserves a honourable mentioning in the obfuscated C contest.

	Regards
		Oliver
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