openvswitch: Add skb_clone NULL check for the sampling action.
Fix a bug where skb_clone() NULL check is missing in sample action
implementation.
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 794a96f..fe5cda0 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -477,6 +477,8 @@
skb_get(skb);
} else {
sample_skb = skb_clone(skb, GFP_ATOMIC);
+ if (!sample_skb) /* Skip sample action when out of memory. */
+ return 0;
}
/* Note that do_execute_actions() never consumes skb.