From 7b14f58ad65f9d74e4273fb45360cfea824495aa Mon Sep 17 00:00:00 2001
From: adam radford <aradford@gmail.com>
Date: Mon, 11 May 2009 14:55:55 -0700
Subject: [PATCH] [SCSI] 3w-xxxx: scsi_dma_unmap fix

This patch fixes the following regression that occurred during the
scsi_dma_map()/unmap()
changes when compiling with CONFIG_DMA_API_DEBUG=y :

WARNING: at lib/dma-debug.c:496 check_unmap+0x142/0x542()
Hardware name:
3w-xxxx 0000:02:02.0: DMA-API: device driver tries to free DMA memory
it has not allocated [device address=0x0000000000000000] [size=36
bytes]

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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