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[SCSI] dpt_i2o: driver is only 32 bit so don't set 64 bit DMA mask

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This fixes a potential corruption bug where the truncation would cause
reading or writing to the wrong memory area on machines with >4GB of
main memory.

Cc: Stable Kernel Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Bottomley
2007-12-12 15:06:21 -05:00
parent 7ee2413ca0
commit c80ddf00cd
1 changed files with 1 additions and 2 deletions
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3
drivers/scsi/dpt_i2o.c
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@@ -906,8 +906,7 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
} }
pci_set_master(pDev); pci_set_master(pDev);
if (pci_set_dma_mask(pDev, DMA_64BIT_MASK) && if (pci_set_dma_mask(pDev, DMA_32BIT_MASK))
pci_set_dma_mask(pDev, DMA_32BIT_MASK))
return -EINVAL; return -EINVAL;
base_addr0_phys = pci_resource_start(pDev,0); base_addr0_phys = pci_resource_start(pDev,0);