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authorChristoph Paasch <christoph.paasch@uclouvain.be>2013-03-20 08:59:46 +0000
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2013-03-27 03:26:27 -0700
commit37287fae7e4506fb0822523587c769783164cdd6 (patch)
treeafd875026b95a73bc4aeb11915c0b02f93153b07 /drivers/net
parent065946c65a61943b4c609a0a1b1bac6742b3b593 (diff)
downloadtalos-obmc-linux-37287fae7e4506fb0822523587c769783164cdd6.tar.gz
talos-obmc-linux-37287fae7e4506fb0822523587c769783164cdd6.zip
e1000e: Add missing dma_mapping_error-call in e1000_alloc_jumbo_rx_buffers
After dma_map_page, dma_mapping_error must be called. It seems safe to not free the skb/page allocated in this function, as the skb/page can be reused later. Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/e1000e/netdev.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 948b86ffa4f0..7e615e2bf7e6 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -848,11 +848,16 @@ check_page:
}
}
- if (!buffer_info->dma)
+ if (!buffer_info->dma) {
buffer_info->dma = dma_map_page(&pdev->dev,
buffer_info->page, 0,
PAGE_SIZE,
DMA_FROM_DEVICE);
+ if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
+ adapter->alloc_rx_buff_failed++;
+ break;
+ }
+ }
rx_desc = E1000_RX_DESC_EXT(*rx_ring, i);
rx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma);
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