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| author | David Howells <dhowells@redhat.com> | 2020-07-20 12:41:46 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-20 17:47:10 -0700 |
| commit | 639f181f0ee20d3249dbc55f740f0167267180f0 (patch) | |
| tree | db0d374cdf4d772cb453f64580dcc640ec4f6885 /net | |
| parent | 7d85396c4c72de12df76d6b9853fd871dbfdf2ec (diff) | |
| download | linux-639f181f0ee20d3249dbc55f740f0167267180f0.tar.gz linux-639f181f0ee20d3249dbc55f740f0167267180f0.tar.bz2 linux-639f181f0ee20d3249dbc55f740f0167267180f0.zip | |
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')
| -rw-r--r-- | net/rxrpc/recvmsg.c | 2 | ||||
| -rw-r--r-- | net/rxrpc/sendmsg.c | 2 |
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; |