l2tp: Fix sendmsg() return value
[ Upstream commit a6f79d0f26704214b5b702bbac525cb72997f984 ]
PPPoL2TP sockets should comply with the standard send*() return values
(i.e. return number of bytes sent instead of 0 upon success).
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 06bb5b3..c6dee80 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -362,7 +362,7 @@
sock_put(ps->tunnel_sock);
sock_put(sk);
- return error;
+ return total_len;
error_put_sess_tun:
sock_put(ps->tunnel_sock);