[Mesa-dev] [PATCH] egl: Don't add hardware device if there is no render node v2.

[Emil Velikov]

On 2019/06/17, Mathias.Froehlich at gmx.net wrote:
> From: Mathias Fröhlich <Mathias.Froehlich at gmx.net>
> 
> 
> Emil,
> 
> that one probably matches your original intent then.
> 
> please review
> Thanks
> 
> Mathias
> 
> 
> Do not offer a hardware drm backed egl device if no render node
> is available. The current implementation will fail on this
> egl device. On top it issues a warning that is actually missleading.
> There are finally more error paths that can fail on the way to a
> hardware backed egl device. Fixing all of them would kind of require
> opening the drm device and see if there is a usable driver associated
> with the device. The taken approach avoids a full probe and fixes at
> least this kind of problem on kvm virtualization hosts I observe here.
> 
Thanks

Fixes: dbb4457d985 ("egl: add EGL_EXT_device_drm support")
Reviewed-by: Emil Velikov <emil.velikov at collabora.com>

-Emil