ixgb: Add missing dma_mapping_error-call in ixgb_alloc_rx_buffers

After dma_map_single, dma_mapping_error must be called. It seems safe to
not free the skb allocated in this function, as the skb can be reused
later.

Additionally this patch fixes one coding-style error.

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>

diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index ea48083..b5f94ab 100644 (file)
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -2159,6 +2159,10 @@ map_skb:
                                                  skb->data,
                                                  adapter->rx_buffer_len,
                                                  DMA_FROM_DEVICE);
+               if (dma_mapping_error(&pdev->dev, buffer_info->dma)) {
+                       adapter->alloc_rx_buff_failed++;
+                       break;
+               }
 
                rx_desc = IXGB_RX_DESC(*rx_ring, i);
                rx_desc->buff_addr = cpu_to_le64(buffer_info->dma);
@@ -2168,7 +2172,8 @@ map_skb:
                rx_desc->status = 0;
 
 
-               if (++i == rx_ring->count) i = 0;
+               if (++i == rx_ring->count)
+                       i = 0;
                buffer_info = &rx_ring->buffer_info[i];
        }