From 40cdc840dc337cb17d81bcf028b40834e78c1038 Mon Sep 17 00:00:00 2001
From: Jenx Axboe <axboe@suse.de>
Date: Sun, 5 Feb 2006 16:36:23 +0100
Subject: [PATCH] [SCSI] gdth: don't map zero-length requests

Don't map zero-length requests in gdth, zome architectures don't like
that in their dma mapping routines.

[ I'm pretty sure Jens posted this before, but for some reason it got
  forgotten  --hch ]

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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