From: Ricardo Ribalda <ricardo.ribalda@gmail.com>
Date: Mon, 7 Nov 2011 23:31:58 +0000 (+0000)
Subject: net/temac: FIX segfault when process old irqs
X-Git-Tag: v3.2-rc3~25^2~55
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=50ec1538fac0e39078d45ca5f8a5186621830058;p=pandora-kernel.git

net/temac: FIX segfault when process old irqs

Do not enable the irq until the scatter gather registers are ready to
handle the data. Otherwise an irq from a packet send/received before
last close can lead to an access to an invalid memory region on the irq
handler.

Also, stop the dma engine on close.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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