Commit ec2deec1 authored Jul 20, 2012 by Shuah Khan Committed by David S. Miller Jul 22, 2012

niu: Fix to check for dma mapping errors.



Fix Neptune ethernet driver to check dma mapping error after map_page()
interface returns.

Signed-off-by: Shuah Khan <shuah.khan@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 81881047

drivers/net/ethernet/sun/niu.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -3335,6 +3335,10 @@ static int niu_rbr_add_page(struct niu np, struct rx_ring_info rp,

		addr = np->ops->map_page(np->device, page, 0,
		PAGE_SIZE, DMA_FROM_DEVICE);
		if (!addr) {
		__free_page(page);
		return -ENOMEM;
		}

		niu_hash_page(rp, page, addr);
		if (rp->rbr_blocks_per_page > 1)