Milan Broz fea4074e8f Check internal device functions for NULL device. ...

Most of these functions already works even with device=NULL.

There can be some rare situations when this call could happen,
so be safe always.
(Like initialization for a device that disappears during init.)

Also see
https://bugzilla.redhat.com/show_bug.cgi?id=1932946

2021-03-01 20:38:52 +01:00

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