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>

diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 335417b4756b73d3d2d9f1558b10b2556443bee7..ebe60719e489cd1fbdc12248ee48eed6d0979fd4 100644 (file)
--- 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;
 }