linux-kernel - 2.6.34 Crash in dmaengine

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Message-ID: <AANLkTilCW2iqsNaWM9NYIomy8OxGC9jG40KpLcKMYTqL@mail.gmail.com>
Date:	Mon, 21 Jun 2010 20:57:40 -0600
From:	Jeffrey Merkey <jeffmerkey@...il.com>
To:	linux-kernel@...r.kernel.org
Subject: 2.6.34 Crash in dmaengine_put()

If someone sets the IFF_UP flags in the netdev structure without going
through ifup userspace stuff, during unregister of the the netdev
the dmaengine-put code will decrement the reference counter negative,
and crash at BUG! in the driver/dma/dmaengine.c code.  This seems
busted.

Jeff
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