[PATCH v2 0/3] MR3105: Add a few additional nullchecks (Coverity)

[Fabian Maurer (＠DarkShadow44)]

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  v2: wineoss: Remove superflous check
      advpack: Add nullcheck for parameter that can be null (Coverity)
      mmdevapi: Add nullcheck for parameter that can be null (Coverity)

https://gitlab.winehq.org/wine/wine/-/merge_requests/3105