ibmveth: check return of skb_linearize in ibmveth_start_xmit

If skb_linearize fails, the driver should drop the packet
instead of trying to copy it into the bounce buffer.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 335417b4756b..ebe60719e489 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1166,7 +1166,10 @@ map_failed:
         if (!firmware_has_feature(FW_FEATURE_CMO))
                 netdev_err(netdev, "tx: unable to map xmit buffer\n");
         adapter->tx_map_failed++;
-        skb_linearize(skb);
+        if (skb_linearize(skb)) {
+                netdev->stats.tx_dropped++;
+                goto out;
+        }
         force_bounce = 1;
         goto retry_bounce;
 }