* [PATCH AUTOSEL 4.14 01/33] iommu/arm-smmu: Free context bitmap in the err path of arm_smmu_init_domain_context
@ 2019-10-26 13:20 Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2019-10-26 13:20 UTC (permalink / raw)
To: linux-kernel, stable; +Cc: Sasha Levin, Liu Xiang, iommu, Will Deacon
From: Liu Xiang <liuxiang_1999@126.com>
[ Upstream commit 6db7bfb431220d78e34d2d0afdb7c12683323588 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/iommu/arm-smmu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index c38cf03c099ed..f97c26c90c41f 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -922,6 +922,7 @@ 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);
--
2.20.1
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2019-10-26 13:20 [PATCH AUTOSEL 4.14 01/33] iommu/arm-smmu: Free context bitmap in the err path of arm_smmu_init_domain_context Sasha Levin
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