[NETLINK]: Directly return -EINTR from netlink_dump_start()
Now that all users of netlink_dump_start() use netlink_run_queue()
to process the receive queue, it is possible to return -EINTR from
netlink_dump_start() directly, therefore simplying the callers.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 1823b7c..2cbf168 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -1426,7 +1426,12 @@
netlink_dump(sk);
sock_put(sk);
- return 0;
+
+ /* We successfully started a dump, by returning -EINTR we
+ * signal the queue mangement to interrupt processing of
+ * any netlink messages so userspace gets a chance to read
+ * the results. */
+ return -EINTR;
}
void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err)
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 1b897bc..fac2e7a 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -323,11 +323,8 @@
if (ops->dumpit == NULL)
return -EOPNOTSUPP;
- err = netlink_dump_start(genl_sock, skb, nlh,
- ops->dumpit, ops->done);
- if (err == 0)
- err = -EINTR;
- return err;
+ return netlink_dump_start(genl_sock, skb, nlh,
+ ops->dumpit, ops->done);
}
if (ops->doit == NULL)