drm/msm/adreno: fix probe without iommu
authorLuca Weiss <luca@z3ntu.xyz>
Fri, 11 Sep 2020 16:08:53 +0000 (18:08 +0200)
committerRob Clark <robdclark@chromium.org>
Sat, 12 Sep 2020 17:09:28 +0000 (10:09 -0700)
commit0a48db562c6264da2ae8013491efd6e8dc780520
tree04343e8165c233c06b4d602354536e182cd6a4aa
parentec1cb6e4408abe5fb723872d265fefa939f1a2ba
drm/msm/adreno: fix probe without iommu

The function iommu_domain_alloc returns NULL on platforms without IOMMU
such as msm8974. This resulted in PTR_ERR(-ENODEV) being assigned to
gpu->aspace so the correct code path wasn't taken.

Fixes: ccac7ce373c1 ("drm/msm: Refactor address space initialization")
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
drivers/gpu/drm/msm/adreno/adreno_gpu.c