[PATCH v2 2/5] drm/xen-front: Fix misused IS_ERR_OR_NULL checks

[Oleksandr Andrushchenko]

Hi,

On 8/20/20 2:56 AM, Sasha Levin wrote:
> Hi
>
> [This is an automated email]
>
> This commit has been processed because it contains a "Fixes:" tag
> fixing commit: c575b7eeb89f ("drm/xen-front: Add support for Xen PV display frontend").
>
> The bot has tested the following trees: v5.8.1, v5.7.15, v5.4.58, v4.19.139.
>
> v5.8.1: Build OK!
> v5.7.15: Build OK!
> v5.4.58: Failed to apply! Possible dependencies:
>      4c1cb04e0e7a ("drm/xen: fix passing zero to 'PTR_ERR' warning")
>      93adc0c2cb72 ("drm/xen: Simplify fb_create")
>
> v4.19.139: Failed to apply! Possible dependencies:
>      4c1cb04e0e7a ("drm/xen: fix passing zero to 'PTR_ERR' warning")
>      93adc0c2cb72 ("drm/xen: Simplify fb_create")
>
>
> NOTE: The patch will not be queued to stable trees until it is upstream.
>
> How should we proceed with this patch?
>
This is because of commit 4c1cb04e0e7ac4ba1ef5457929ef9b5671d9eed3

was not CCed to stable. So, if we want the patch to be applied to older stable

kernels we also need this patch as well.

Thank you,

Oleksandr