From 75ff85a81680e5779383aa6210a4f89ed76e40ec Mon Sep 17 00:00:00 2001
From: Ira Snyder <iws@ovro.caltech.edu>
Date: Thu, 26 Jan 2012 10:59:54 +0000
Subject: [PATCH] carma-fpga: fix lockdep warning

Lockdep occasionally complains with the message:
INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected

This is caused by calling videobuf_dma_unmap() under spin_lock_irq(). To
fix the warning, we drop the lock before unmapping and freeing the
buffer.

Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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