From: Anton Vorontsov <avorontsov@ru.mvista.com>
Date: Tue, 10 Nov 2009 14:11:08 +0000 (+0000)
Subject: gianfar: Fix race between gfar_error() and gfar_start_xmit()
X-Git-Tag: v2.6.33-rc1~388^2~409
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=836cf7faf8c75743477ed6ed341cce491f3183fb;p=pandora-kernel.git

gianfar: Fix race between gfar_error() and gfar_start_xmit()

gfar_error() can arrive at the middle of gfar_start_xmit() processing,
and so it can trigger transfers of BDs that we don't yet expect to
be transmitted.

Fix this by locking the tx queues in gfar_error().

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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