Hi James,

Here are the changes that are good outside the other changes :-)

scsi_lib:
	o ->errors is used as the scsi status byte for REQ_BLOCK_PC
	o ->data_len is the residual byte count
	o call __scsi_end_request even for !good_sectors if status is
	  good. This legitimately can happen for REQ_BLOCK_PC commands
	  sent from a user space program, if it gets the command setup
	  wrong (or weird). Right now this will hang that queue.

scsi_merge:
	o set SCpnt->request_bufflen to ->data_len, this is the
	  authoritative io byte count for REQ_BLOCK_PC. Here we deal in
	  bytes and not sectors.

sr + sd:
	o Set transfersize and underlow correctly for REQ_BLOCK_PC

sr_ioctl
	o We want to return -EIO for command failure, not EINVAL. That
 	  is pretty stupid :-)


===== drivers/scsi/scsi_lib.c 1.35 vs edited =====