Merge branch 'tracing/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic...

[linux-2.6-block.git] / drivers / net / e1000 / e1000_main.c

diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index d29bb532eccf15349f8792fbb0f5b803beda29db..765543663a4f29ada5fef9fe31032a476d306dda 100644 (file)
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -4006,11 +4006,21 @@ check_page:
                        }
                }
 
-               if (!buffer_info->dma)
+               if (!buffer_info->dma) {
                        buffer_info->dma = pci_map_page(pdev,
                                                        buffer_info->page, 0,
                                                        buffer_info->length,
                                                        PCI_DMA_FROMDEVICE);
+                       if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
+                               put_page(buffer_info->page);
+                               dev_kfree_skb(skb);
+                               buffer_info->page = NULL;
+                               buffer_info->skb = NULL;
+                               buffer_info->dma = 0;
+                               adapter->alloc_rx_buff_failed++;
+                               break; /* while !buffer_info->skb */
+                       }
+               }
 
                rx_desc = E1000_RX_DESC(*rx_ring, i);
                rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
@@ -4101,6 +4111,13 @@ map_skb:
                                                  skb->data,
                                                  buffer_info->length,
                                                  PCI_DMA_FROMDEVICE);
+               if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
+                       dev_kfree_skb(skb);
+                       buffer_info->skb = NULL;
+                       buffer_info->dma = 0;
+                       adapter->alloc_rx_buff_failed++;
+                       break; /* while !buffer_info->skb */
+               }
 
                /*
                 * XXX if it was allocated cleanly it will never map to a