[SCSI] fix up request buffer reference in various scsi drivers

Various scsi drivers use scsi_cmnd.buffer and scsi_cmnd.bufflen in their
queuecommand functions.  Those fields are internal storage for the
midlayer only and are used to restore the original payload after
request_buffer and request_bufflen have been overwritten for EH.  Using
the buffer and bufflen fields means they do very broken things in error
handling.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index a4c0b04cfdbd..350c08c60887 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -4364,7 +4364,7 @@ ips_rdcap(ips_ha_t * ha, ips_scb_t * scb)
 
         METHOD_TRACE("ips_rdcap", 1);
 
-        if (scb->scsi_cmd->bufflen < 8)
+        if (scb->scsi_cmd->request_bufflen < 8)
                 return (0);
 
         cap.lba =