netdev - Re: [PATCH] CDC NCM: release interfaces fix in unbind()

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Date:	Tue, 17 May 2011 08:26:42 +0200
From:	Oliver Neukum <oneukum@...e.de>
To:	Alexey ORISHKO <alexey.orishko@...ricsson.com>
Cc:	David Miller <davem@...emloft.net>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"gregkh@...e.de" <gregkh@...e.de>
Subject: Re: [PATCH] CDC NCM: release interfaces fix in unbind()

Am Dienstag, 17. Mai 2011, 02:52:34 schrieb Alexey ORISHKO:

> Some confusion was added by other driver code that handles crippled
> devices, which mix ctrl and data interfaces... Shall not be the case here.
> I see, that some clean up can be done and "xxx_claimed" fields in context
> structure can be removed, so will post a new version of patch shortly.

This code is a bit tricky in those drivers because you cannot assume a certain
order of calls to disconnect() w.r.t. the interfaces. If you claim multiple
interfaces, you need to release all other interfaces, as soon as any interface
is disconnected.

	Regards
		Oliver
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