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drm/nouveau/tegra: Fix error handling 

'iommu_domain_alloc()' returns NULL in case of error, not an error pointer.
So test it accordingly.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Christophe JAILLET 2016-10-31 07:35:50 +01:00 committed by Ben Skeggs
parent 770b06e8cb
commit 91cf301f6f
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/nouveau/nvkm/engine/device/tegra.c
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@ -102,7 +102,7 @@ nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev)
if (iommu_present(&platform_bus_type)) {
tdev->iommu.domain = iommu_domain_alloc(&platform_bus_type);
if (IS_ERR(tdev->iommu.domain))
if (!tdev->iommu.domain)
goto error;
/*