diff options
| author | Ivan Vecera <ivecera@redhat.com> | 2014-01-15 11:11:34 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-15 16:50:32 -0800 |
| commit | ba42fad0964a41f0830e80c1b6be49c1e6bfcc01 (patch) | |
| tree | 1855dfebb3c7f90e843895adbc9485808a5eb095 | |
| parent | d9aee591b0f06bd44cd577b757d3f267bc35fe4d (diff) | |
| download | op-kernel-dev-ba42fad0964a41f0830e80c1b6be49c1e6bfcc01.zip op-kernel-dev-ba42fad0964a41f0830e80c1b6be49c1e6bfcc01.tar.gz | |
be2net: add dma_mapping_error() check for dma_map_page()
The driver does not check value returned by dma_map_page. The patch
fixes this.
v2: Removed the bugfix for non-bug ;-) (thanks Sathya)
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Acked-by: Sathya Perla <Sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be_main.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index bf40fda..a37039d 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -1776,6 +1776,7 @@ static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp) struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL; struct be_queue_info *rxq = &rxo->q; struct page *pagep = NULL; + struct device *dev = &adapter->pdev->dev; struct be_eth_rx_d *rxd; u64 page_dmaaddr = 0, frag_dmaaddr; u32 posted, page_offset = 0; @@ -1788,9 +1789,15 @@ static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp) rx_stats(rxo)->rx_post_fail++; break; } - page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep, - 0, adapter->big_page_size, + page_dmaaddr = dma_map_page(dev, pagep, 0, + adapter->big_page_size, DMA_FROM_DEVICE); + if (dma_mapping_error(dev, page_dmaaddr)) { + put_page(pagep); + pagep = NULL; + rx_stats(rxo)->rx_post_fail++; + break; + } page_info->page_offset = 0; } else { get_page(pagep); |
