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authorDavid Howells <dhowells@redhat.com>2020-07-20 12:41:46 +0100
committerDavid S. Miller <davem@davemloft.net>2020-07-20 17:47:10 -0700
commit639f181f0ee20d3249dbc55f740f0167267180f0 (patch)
treedb0d374cdf4d772cb453f64580dcc640ec4f6885 /net/rxrpc
parent7d85396c4c72de12df76d6b9853fd871dbfdf2ec (diff)
rxrpc: Fix sendmsg() returning EPIPE due to recvmsg() returning ENODATA
rxrpc_sendmsg() returns EPIPE if there's an outstanding error, such as if rxrpc_recvmsg() indicating ENODATA if there's nothing for it to read. Change rxrpc_recvmsg() to return EAGAIN instead if there's nothing to read as this particular error doesn't get stored in ->sk_err by the networking core. Also change rxrpc_sendmsg() so that it doesn't fail with delayed receive errors (there's no way for it to report which call, if any, the error was caused by). Fixes: 17926a79320a ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both") Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rxrpc')
-rw-r--r--net/rxrpc/recvmsg.c2
-rw-r--r--net/rxrpc/sendmsg.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/net/rxrpc/recvmsg.c b/net/rxrpc/recvmsg.c
index 2989742a4aa1..490b1927215c 100644
--- a/net/rxrpc/recvmsg.c
+++ b/net/rxrpc/recvmsg.c
@@ -543,7 +543,7 @@ try_again:
list_empty(&rx->recvmsg_q) &&
rx->sk.sk_state != RXRPC_SERVER_LISTENING) {
release_sock(&rx->sk);
- return -ENODATA;
+ return -EAGAIN;
}
if (list_empty(&rx->recvmsg_q)) {
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index 1304b8608f56..03a30d014bb6 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -304,7 +304,7 @@ static int rxrpc_send_data(struct rxrpc_sock *rx,
/* this should be in poll */
sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
- if (sk->sk_err || (sk->sk_shutdown & SEND_SHUTDOWN))
+ if (sk->sk_shutdown & SEND_SHUTDOWN)
return -EPIPE;
more = msg->msg_flags & MSG_MORE;