evas: Fix crash in E

Authored by Jean-Philippe Andre <jp.andre@samsung.com> on Aug 9 2017, 7:48 PM.


evas: Fix crash in E

Somehow starting VirtualBox would crash E when trying to upload invalid
data. I believe checking for NULL data here is all we need to do in
order to keep the image data consistent and valid.

I have to admit I'm not 100% sure what is happening here.

Fixes T5868