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

[Sasha Levin]

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?

-- 
Thanks
Sasha