linux-kernel - Re: [PATCH] USB: fix deadlock in HCD code

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Date:	Wed, 21 May 2008 16:31:15 +0200
From:	Oliver Neukum <oliver@...kum.org>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Jiri Kosina <jkosina@...e.cz>, Greg KH <greg@...ah.com>,
	linux-usb@...r.kernel.org, lchiquitto@...ell.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] USB: fix deadlock in HCD code

Am Mittwoch 21 Mai 2008 16:13:45 schrieb Alan Stern:
> > usb_hcd_flush_endpoint() is an obvious case.
> 
> It's not obvious to me.  Where does usb_hcd_flush_endpoint() acquire 
> hcd_urb_list_lock with interrupts enabled?

Sorry, yes looking again, it does complicated stuff with dropping the
lock but leaving interrupts disabled.

	Sorry
		Oliver

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