Commit 40cdc840 authored Feb 05, 2006 by Jens Axboe Committed by Feb 05, 2006

[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>

parent f9876f0b

drivers/scsi/gdth.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2816,7 +2816,7 @@ static int gdth_fill_cache_cmd(int hanum,Scsi_Cmnd *scp,ushort hdrive)
		}
		#endif

		} else {
		} else if (scp->request_bufflen) {
		scp->SCp.Status = GDTH_MAP_SINGLE;
		scp->SCp.Message = (read_write == 1 ?
		PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);