Léo Lam 77fab5940c InputConfigDiag: Don't prevent closing dialog if device not found
There is no reason to prevent the user from closing the config dialog
if the device is not found. It's not very good UX…

Also fixes ExpressionParser to return NO_DEVICE if the device doesn't
exist instead of SUCCESS.
2016-07-30 10:00:55 +02:00
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