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iommu/arm-smmu-v3: Fix a NULL vs IS_ERR() check

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The arm_smmu_domain_alloc() function returns error pointers on error.  It
doesn't return NULL.  Update the error checking to match.

Fixes: 52acd7d8a4 ("iommu/arm-smmu-v3: Add support for domain_alloc_user fn")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/9208cd0d-8105-40df-93e9-bdcdf0d55eec@stanley.mountain
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Dan Carpenter
2024-08-15 14:25:00 +03:00
committed by Will Deacon
parent df49881956
commit af048ec9c0
1 changed files with 2 additions and 2 deletions
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drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+2 -2
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@@ -3062,8 +3062,8 @@ arm_smmu_domain_alloc_user(struct device *dev, u32 flags,
return ERR_PTR(-EOPNOTSUPP);
smmu_domain = arm_smmu_domain_alloc();
if (!smmu_domain)
return ERR_PTR(-ENOMEM);
if (IS_ERR(smmu_domain))
return ERR_CAST(smmu_domain);
smmu_domain->domain.type = IOMMU_DOMAIN_UNMANAGED;
smmu_domain->domain.ops = arm_smmu_ops.default_domain_ops;