[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/nsp32.c b/drivers/scsi/nsp32.c
index 30ee0ef..5c55e15 100644
--- a/drivers/scsi/nsp32.c
+++ b/drivers/scsi/nsp32.c
@@ -1636,7 +1636,7 @@
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,