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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2008-12-23 04:01:35 +0900 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-12-29 11:24:35 -0600 |
| commit | 20c09df7eb9c92a40e0ecf654b6e8f14c8583b9e (patch) | |
| tree | 037b6fa105d6e0ceb9bfb8ee1d87d858e4d530fc /drivers/scsi/eata.c | |
| parent | d2131b33c7e07c2905ee2f2321cc4dae1928c483 (diff) | |
| download | kernel_samsung_espresso10-20c09df7eb9c92a40e0ecf654b6e8f14c8583b9e.zip kernel_samsung_espresso10-20c09df7eb9c92a40e0ecf654b6e8f14c8583b9e.tar.gz kernel_samsung_espresso10-20c09df7eb9c92a40e0ecf654b6e8f14c8583b9e.tar.bz2 | |
[SCSI] eata: fix the data buffer accessors conversion regression
This fixes the regression introduced by the commit
58e2a02eb18393e76a469580fedf7caec190eb5e (eata: convert to use the
data buffer accessors), reported:
http://marc.info/?t=122987621300006&r=1&w=2
- fix DMA_NONE handling in map_dma()
- this driver can't use scsi_dma_map since host->shost_gendev.parent
is not set properly (it uses scsi_register).
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Reported-by: Arthur Marsh <arthur.marsh@internode.on.net>
Tested-by: Arthur Marsh <arthur.marsh@internode.on.net>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/eata.c')
| -rw-r--r-- | drivers/scsi/eata.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/scsi/eata.c b/drivers/scsi/eata.c index a73a6bb..976cdd5 100644 --- a/drivers/scsi/eata.c +++ b/drivers/scsi/eata.c @@ -1626,8 +1626,15 @@ static void map_dma(unsigned int i, struct hostdata *ha) cpp->sense_len = SCSI_SENSE_BUFFERSIZE; - count = scsi_dma_map(SCpnt); - BUG_ON(count < 0); + if (!scsi_sg_count(SCpnt)) { + cpp->data_len = 0; + return; + } + + count = pci_map_sg(ha->pdev, scsi_sglist(SCpnt), scsi_sg_count(SCpnt), + pci_dir); + BUG_ON(!count); + scsi_for_each_sg(SCpnt, sg, count, k) { cpp->sglist[k].address = H2DEV(sg_dma_address(sg)); cpp->sglist[k].num_bytes = H2DEV(sg_dma_len(sg)); @@ -1655,7 +1662,9 @@ static void unmap_dma(unsigned int i, struct hostdata *ha) pci_unmap_single(ha->pdev, DEV2H(cpp->sense_addr), DEV2H(cpp->sense_len), PCI_DMA_FROMDEVICE); - scsi_dma_unmap(SCpnt); + if (scsi_sg_count(SCpnt)) + pci_unmap_sg(ha->pdev, scsi_sglist(SCpnt), scsi_sg_count(SCpnt), + pci_dir); if (!DEV2H(cpp->data_len)) pci_dir = PCI_DMA_BIDIRECTIONAL; |