[DECNET]: fix SIGPIPE
Currently recvmsg generates SIGPIPE whereas sendmsg does not; for the
other stacks it seems to be the other way round!
It also fixes the bug where reading from a socket whose peer has shutdown
returned -EINVAL rather than 0.
Signed-off-by: Patrick Caulfield <patrick@tykepenguin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index 3f25cad..f89e55f 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1664,17 +1664,15 @@
goto out;
}
+ if (sk->sk_shutdown & RCV_SHUTDOWN) {
+ rv = 0;
+ goto out;
+ }
+
rv = dn_check_state(sk, NULL, 0, &timeo, flags);
if (rv)
goto out;
- if (sk->sk_shutdown & RCV_SHUTDOWN) {
- if (!(flags & MSG_NOSIGNAL))
- send_sig(SIGPIPE, current, 0);
- rv = -EPIPE;
- goto out;
- }
-
if (flags & ~(MSG_PEEK|MSG_OOB|MSG_WAITALL|MSG_DONTWAIT|MSG_NOSIGNAL)) {
rv = -EOPNOTSUPP;
goto out;
@@ -1928,6 +1926,8 @@
if (sk->sk_shutdown & SEND_SHUTDOWN) {
err = -EPIPE;
+ if (!(flags & MSG_NOSIGNAL))
+ send_sig(SIGPIPE, current, 0);
goto out_err;
}