[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>
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index a4c0b04..350c08c 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -4364,7 +4364,7 @@
METHOD_TRACE("ips_rdcap", 1);
- if (scb->scsi_cmd->bufflen < 8)
+ if (scb->scsi_cmd->request_bufflen < 8)
return (0);
cap.lba =