netlink: change return-value logic of netlink_broadcast()

[pandora-kernel.git] / net / netlink / af_netlink.c

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 9eb895c..6ee69c2 100644 (file)
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -950,6 +950,7 @@ struct netlink_broadcast_data {
        u32 pid;
        u32 group;
        int failure;
+       int delivery_failure;
        int congested;
        int delivered;
        gfp_t allocation;
@@ -999,6 +1000,7 @@ static inline int do_one_broadcast(struct sock *sk,
                p->skb2 = NULL;
        } else if ((val = netlink_broadcast_deliver(sk, p->skb2)) < 0) {
                netlink_overrun(sk);
+               p->delivery_failure = 1;
        } else {
                p->congested |= val;
                p->delivered = 1;
@@ -1025,6 +1027,7 @@ int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
        info.pid = pid;
        info.group = group;
        info.failure = 0;
+       info.delivery_failure = 0;
        info.congested = 0;
        info.delivered = 0;
        info.allocation = allocation;
@@ -1045,13 +1048,14 @@ int netlink_broadcast(struct sock *ssk, struct sk_buff *skb, u32 pid,
        if (info.skb2)
                kfree_skb(info.skb2);
 
+       if (info.delivery_failure || info.failure)
+               return -ENOBUFS;
+
        if (info.delivered) {
                if (info.congested && (allocation & __GFP_WAIT))
                        yield();
                return 0;
        }
-       if (info.failure)
-               return -ENOBUFS;
        return -ESRCH;
 }
 EXPORT_SYMBOL(netlink_broadcast);