[SCSI] dpt_i2o: driver is only 32 bit so don't set 64 bit DMA mask
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>
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 70f48a1..b31d1c95c 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -906,8 +906,7 @@
}
pci_set_master(pDev);
- if (pci_set_dma_mask(pDev, DMA_64BIT_MASK) &&
- pci_set_dma_mask(pDev, DMA_32BIT_MASK))
+ if (pci_set_dma_mask(pDev, DMA_32BIT_MASK))
return -EINVAL;
base_addr0_phys = pci_resource_start(pDev,0);