[PATCH 1/1] infiniband: nes: return value of skb_linearize should be handled

[Zhouyi Zhou]

Return value of skb_linearize should be handled in function 
nes_netdev_start_xmit.

Compiled in x86_64
Signed-off-by: Zhouyi Zhou <yizhouz...@ict.ac.cn>
Reviewed-by: Yuval Shaia <yuval.sh...@oracle.com> 
Reviewed-by: Eric Dumazet <eric.duma...@gmail.com>

---
 drivers/infiniband/hw/nes/nes_nic.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/nes/nes_nic.c 
b/drivers/infiniband/hw/nes/nes_nic.c
index 2b27d13..dfd1f57 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -662,10 +662,14 @@ static int nes_netdev_start_xmit(struct sk_buff *skb, 
struct net_device *netdev)
                                nesnic->sq_head &= nesnic->sq_size-1;
                        }
                } else {
-                       nesvnic->linearized_skbs++;
                        hoffset = skb_transport_header(skb) - skb->data;
                        nhoffset = skb_network_header(skb) - skb->data;
-                       skb_linearize(skb);
+                       if (skb_linearize(skb)) {
+                               nesvnic->tx_sw_dropped++;
+                               kfree_skb(skb);
+                               return NETDEV_TX_OK;
+                       }
+                       nesvnic->linearized_skbs++;
                        skb_set_transport_header(skb, hoffset);
                        skb_set_network_header(skb, nhoffset);
                        if (!nes_nic_send(skb, netdev))
-- 
1.9.1