sparc32: add offset in pci_map_sg()

Add sg->offset to sg->dvma_address in pci_map_sg() on sparc32.  Without the
offset, transfers to buffers that do not begin on a page boundary will not
work as expected.
Signed-off-by: Jan Andersson <jan.andersson@ieee.org>
Acked-By: David Miller <davem@davemloft.net>

arch/sparc/kernel/ioport.c

@@ -581,7 +581,8 @@ int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents,
 	/* IIep is write-through, not flushing. */
 	for (n = 0; n < nents; n++) {
 		if (page_address(sg->page) == NULL) BUG();
-		sg->dvma_address = virt_to_phys(page_address(sg->page));
+		sg->dvma_address =
+			virt_to_phys(page_address(sg->page)) + sg->offset;
 		sg->dvma_length = sg->length;
 		sg++;
 	}