diff options
| author | Shuah Khan <shuah.khan@hp.com> | 2012-07-20 11:50:35 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-07-22 23:31:06 -0700 |
| commit | ec2deec1f3520c467e3fb64f11a5d1e9c073e376 (patch) | |
| tree | 64f7c991cb5fb9bd207976c3c8da0f14bc0e891d | |
| parent | 818810472b129004c16fc51bf0a570b60776bfb7 (diff) | |
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>
| -rw-r--r-- | drivers/net/ethernet/sun/niu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c index 8c726b7004d..60d5c035d94 100644 --- a/drivers/net/ethernet/sun/niu.c +++ b/drivers/net/ethernet/sun/niu.c @@ -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) |