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 /drivers/net/ethernet/sun/niu.c | |
| parent | net: Fix references to out-of-scope variables in put_cmsg_compat() (diff) | |
| download | linux-dev-ec2deec1f3520c467e3fb64f11a5d1e9c073e376.tar.xz linux-dev-ec2deec1f3520c467e3fb64f11a5d1e9c073e376.zip | |
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>
Diffstat (limited to 'drivers/net/ethernet/sun/niu.c')
| -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 8c726b7004d3..60d5c035d946 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) |