[PATCH v2 0/3] MR225: server: Fix races related to socket errors

[Piotr Caban (＠piotr)]

Calling ioctl(..., SO_ERROR, ...) clears pending socket error. Because of that we may clear the error in poll_socket or IOCTL_AFD_GET_SO_ERROR. This leads to failures during Battle.net installation (it's a race that I can only reproduce on slow machines).

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  v2: server: Don't reset socket error in IOCTL_AFD_GET_SO_ERROR.
      server: Don't reset socket error in poll_socket.
      server: Always return Win32 error code from IOCTL_AFD_GET_SO_ERROR.

https://gitlab.winehq.org/wine/wine/-/merge_requests/225