Olivier Fourdan 1bd42e8779 xwayland: Propagate error if display sockets failed
In case of failure to open the display sockets, we would not propagatre
the error which can cause a crash when trying to show the error message.

Properly propagate the error to avoid the crash.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1669>
2021-01-21 08:48:39 +01:00
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