diff options
| author | Christoph Hellwig <hch@lst.de> | 2006-06-03 13:21:13 +0200 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-06-06 11:07:25 -0400 |
| commit | 5d5ff44fe6775ccb922fd1f7d478b2ba9ca95068 (patch) | |
| tree | d8569caefe1cb5ecced30929ef98d3e1fe642425 /drivers/scsi/ncr53c8xx.c | |
| parent | e4a082c7c1f9a7b11fece6918e7ee5519b39ac46 (diff) | |
[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>
Diffstat (limited to 'drivers/scsi/ncr53c8xx.c')
| -rw-r--r-- | drivers/scsi/ncr53c8xx.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c index 22f913127f08..6ab035590ee6 100644 --- a/drivers/scsi/ncr53c8xx.c +++ b/drivers/scsi/ncr53c8xx.c @@ -529,7 +529,7 @@ static void __unmap_scsi_data(struct device *dev, struct scsi_cmnd *cmd) { switch(cmd->__data_mapped) { case 2: - dma_unmap_sg(dev, cmd->buffer, cmd->use_sg, + dma_unmap_sg(dev, cmd->request_buffer, cmd->use_sg, cmd->sc_data_direction); break; case 1: @@ -564,7 +564,7 @@ static int __map_scsi_sg_data(struct device *dev, struct scsi_cmnd *cmd) if (cmd->use_sg == 0) return 0; - use_sg = dma_map_sg(dev, cmd->buffer, cmd->use_sg, + use_sg = dma_map_sg(dev, cmd->request_buffer, cmd->use_sg, cmd->sc_data_direction); cmd->__data_mapped = 2; cmd->__data_mapping = use_sg; @@ -7697,7 +7697,7 @@ static int ncr_scatter(struct ncb *np, struct ccb *cp, struct scsi_cmnd *cmd) if (!use_sg) segment = ncr_scatter_no_sglist(np, cp, cmd); else if ((use_sg = map_scsi_sg_data(np, cmd)) > 0) { - struct scatterlist *scatter = (struct scatterlist *)cmd->buffer; + struct scatterlist *scatter = (struct scatterlist *)cmd->request_buffer; struct scr_tblmove *data; if (use_sg > MAX_SCATTER) { |