How copy an alpha channel mask to an adjustment layer?

I can copy an alpha channel mask to an image layer by Ctrl+Clicking the alpha channel then clicking the Add Layer Mask icon in Photoshop CC but this does not work for an adjustment layer. How can I copy the mask from an alpha channel to the layer mask for an adjustment layer? Thanks.

I am using Photoshop CC as I stated in my question. All updates have been installed.
I am running on Win 7 Pro 64 bit with all updates installed.
I am editing a photograph.
I have an alpha channel with a grey scale mask.
If I Ctrl+Click the alpha channel then click the Add Layer Mask button to add a layer mask to an image layer the alpha channel mask is added to the image layer.
If I delete the layer mask from an adjustment layer and follow the same steps a solid white mas is added to the adjustment layer.
Several others in the camera club I belong to have tried this with the same result so the problem is not unique to my system.
Hope this helps.

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