SUNRPC: Don't leak sockets in xs_local_connect()

SUNRPC: Don't leak sockets in xs_local_connect()

If there is still a closed socket associated with the transport, then we
need to trigger an autoclose before we can set up a new connection.

Reported-by: wanghai (M) <wanghai38@huawei.com>
Fixes: f00432063db1 ("SUNRPC: Ensure we flush any closed sockets before xs_xprt_free()")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
CVE-2022-28893
(backported from commit aad41a7d7cf6c6fa804c872a2480f8e541da37cf)
[cengizcan: we don't have commit c4f0396688b5 which fixes the indent
issue so change context]
Signed-off-by: Cengiz Can <cengiz.can@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>