X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=net%2Fcore%2Fpktgen.c;h=4da4d51a2ccfd6e8b8833c35cc0604991536ed68;hb=aa6b4960f4571ecc422a13b2490e91f5debb64a1;hp=de8d5cc5eb240555e2c8b30da7858b3ff9eadffb;hpb=2dab48ef2b2e8b53373acbe354e7c635b03115e1;p=firefly-linux-kernel-4.4.55.git

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index de8d5cc5eb24..4da4d51a2ccf 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2787,7 +2787,9 @@ static struct sk_buff *pktgen_alloc_skb(struct net_device *dev,
 	} else {
 		 skb = __netdev_alloc_skb(dev, size, GFP_NOWAIT);
 	}
-	skb_reserve(skb, LL_RESERVED_SPACE(dev));
+
+	if (likely(skb))
+		skb_reserve(skb, LL_RESERVED_SPACE(dev));
 
 	return skb;
 }