[PATCH xserver 0/2] os: Fix write block handling in poll(2) path

[Keith Packard]

My previous attempt to fix this just hit the wrong variable to fix
edge triggering; it should have reset the POLLOUT bit in
ospoll->osfds[pos].revents instead of ospoll->fds[pos].revents. With
that fixed, it looks like the poll(2) path is working.