The arm_smmu_domain_alloc() function returns error pointers on error. It doesn't return NULL. Update the error checking to match. Fixes: 52acd7d8a413 ("iommu/arm-smmu-v3: Add support for domain_alloc_user fn") Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index 9bc50bded5af..cf21d7d2e737 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -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; -- 2.43.0