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iommu/arm-smmu: Free context bitmap in the err path of arm_smmu_init_domain_context

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When alloc_io_pgtable_ops is failed, context bitmap which is just allocated
by __arm_smmu_alloc_bitmap should be freed to release the resource.

Signed-off-by: Liu Xiang <liuxiang_1999@126.com>
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Liu Xiang 2019-09-16 21:53:00 +08:00 committed by Will Deacon
parent 54ecb8f702
commit 6db7bfb431
1 changed files with 1 additions and 0 deletions
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drivers/iommu/arm-smmu.c
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@ -812,6 +812,7 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain,
return 0;
out_clear_smmu:
__arm_smmu_free_bitmap(smmu->context_map, cfg->cbndx);
smmu_domain->smmu = NULL;
out_unlock:
mutex_unlock(&smmu_domain->init_mutex);