[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/nsp32.c b/drivers/scsi/nsp32.c
index 30ee0ef4b459..5c55e152e718 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -1636,7 +1636,7 @@ static void nsp32_scsi_done(struct scsi_cmnd *SCpnt)
 
         if (SCpnt->use_sg) {
                 pci_unmap_sg(data->Pci,
-                             (struct scatterlist *)SCpnt->buffer,
+                             (struct scatterlist *)SCpnt->request_buffer,
                              SCpnt->use_sg, SCpnt->sc_data_direction);
         } else {
                 pci_unmap_single(data->Pci,