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| author | Russell King | 2007-03-04 21:21:38 +0100 |
|---|---|---|
| committer | Russell King | 2007-03-04 21:33:31 +0100 |
| commit | 23d046f43a05155e050a68f3ad1f19b672713374 (patch) | |
| tree | 5c32d8fde63c81a76083d2a550d5ba02ba44a873 /drivers/scsi/arm/cumana_2.c | |
| parent | [ARM] ARM FAS216: don't modify scsi_cmnd request_bufflen (diff) | |
| download | kernel-qcow2-linux-23d046f43a05155e050a68f3ad1f19b672713374.tar.gz kernel-qcow2-linux-23d046f43a05155e050a68f3ad1f19b672713374.tar.xz kernel-qcow2-linux-23d046f43a05155e050a68f3ad1f19b672713374.zip | |
[ARM] ARM SCSI: Don't try to dma_map_sg too many scatterlist entries
An off-by-one bug meant we were always trying to map one too many
scatterlist entries. This was mostly harmless prior to the checks
going in to consistent_sync(), but now causes the kernel to BUG.
Also, powertec.c was missing an assignment to info->ec.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/scsi/arm/cumana_2.c')
| -rw-r--r-- | drivers/scsi/arm/cumana_2.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/arm/cumana_2.c b/drivers/scsi/arm/cumana_2.c index d2d51dc51ab8..82add77ad131 100644 --- a/drivers/scsi/arm/cumana_2.c +++ b/drivers/scsi/arm/cumana_2.c @@ -178,10 +178,10 @@ cumanascsi_2_dma_setup(struct Scsi_Host *host, struct scsi_pointer *SCp, dma_dir = DMA_MODE_READ, alatch_dir = ALATCH_DMA_IN; - dma_map_sg(dev, info->sg, bufs + 1, map_dir); + dma_map_sg(dev, info->sg, bufs, map_dir); disable_dma(dmach); - set_dma_sg(dmach, info->sg, bufs + 1); + set_dma_sg(dmach, info->sg, bufs); writeb(alatch_dir, info->base + CUMANASCSI2_ALATCH); set_dma_mode(dmach, dma_dir); enable_dma(dmach); |