tree 6d8bb794620cfe0c1daf3d35cb7ac8ab5d95ebf9
parent f9876f0b67c3f0b04ee2167602df54e7ae139ad7
author Jenx Axboe <axboe@suse.de> 1139153783 +0100
committer  <jejb@mulgrave.il.steeleye.com> 1139165969 -0600

[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>