linux-kernel - Re: [PATCH] fsl_usb2_udc: fix recursive lock

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Message-Id: <200805291104.30779.david-b@pacbell.net>
Date:	Thu, 29 May 2008 11:04:30 -0700
From:	David Brownell <david-b@...bell.net>
To:	Li Yang <leoli@...escale.com>
Cc:	gregkh@...e.de, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"Eugene T. Bordenkircher" <Eugene_Bordenkircher@...inc.com>
Subject: Re: [PATCH] fsl_usb2_udc: fix recursive lock

On Thursday 29 May 2008, Li Yang wrote:
> UDC needs to release lock before calling out to gadget driver, since
> it may need to reenter.  The change fixes kernel BUG observed on rt
> kernel.

Acked-by: David Brownell <dbrownell@...rs.sourceforge.net>

... clearly, 2.6.26 material; the same locking problem also
shows up on non-RT kernels.

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