From 5d5ff44fe6775ccb922fd1f7d478b2ba9ca95068 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sat, 3 Jun 2006 13:21:13 +0200 Subject: [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 Signed-off-by: James Bottomley --- drivers/scsi/sym53c8xx_2/sym_glue.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/scsi/sym53c8xx_2/sym_glue.c') diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 9c83b4d..ee081320 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -156,7 +156,7 @@ static void __unmap_scsi_data(struct pci_dev *pdev, struct scsi_cmnd *cmd) switch(SYM_UCMD_PTR(cmd)->data_mapped) { case 2: - pci_unmap_sg(pdev, cmd->buffer, cmd->use_sg, dma_dir); + pci_unmap_sg(pdev, cmd->request_buffer, cmd->use_sg, dma_dir); break; case 1: pci_unmap_single(pdev, SYM_UCMD_PTR(cmd)->data_mapping, @@ -186,7 +186,7 @@ static int __map_scsi_sg_data(struct pci_dev *pdev, struct scsi_cmnd *cmd) int use_sg; int dma_dir = cmd->sc_data_direction; - use_sg = pci_map_sg(pdev, cmd->buffer, cmd->use_sg, dma_dir); + use_sg = pci_map_sg(pdev, cmd->request_buffer, cmd->use_sg, dma_dir); if (use_sg > 0) { SYM_UCMD_PTR(cmd)->data_mapped = 2; SYM_UCMD_PTR(cmd)->data_mapping = use_sg; @@ -376,7 +376,7 @@ static int sym_scatter(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd if (!use_sg) segment = sym_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 sym_tcb *tp = &np->target[cp->target]; struct sym_tblmove *data; -- cgit v1.1