• David Howells's avatar
    rxrpc: Fix sendmsg() returning EPIPE due to recvmsg() returning ENODATA · 639f181f
    David Howells authored
    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: 17926a79 ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both")
    Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    639f181f
recvmsg.c 21.5 KB