[BNX2]: check return of dev_alloc_skb in bnx2_test_loopback

Check return of dev_alloc_skb in bnx2_test_loopback, and handle
appropriately.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 65aae2828f39..32267d538b17 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3903,6 +3903,8 @@ bnx2_test_loopback(struct bnx2 *bp)
 
         pkt_size = 1514;
         skb = dev_alloc_skb(pkt_size);
+        if (!skb)
+                return -ENOMEM;
         packet = skb_put(skb, pkt_size);
         memcpy(packet, bp->mac_addr, 6);
         memset(packet + 6, 0x0, 8);