A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Merge "iommu/arm-smmu: avoid possible deadlock during map_sg"

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qctecmdr 2020-01-08 20:10:12 -08:00 • committed by Gerrit - the friendly Code Review server
commit 7c46c88c7b
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/arm-smmu.c
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@ -3046,12 +3046,12 @@ static size_t arm_smmu_map_sg(struct iommu_domain *domain, unsigned long iova,
out:
arm_smmu_assign_table(smmu_domain);
arm_smmu_secure_domain_unlock(smmu_domain);
if (size_to_unmap) {
arm_smmu_unmap(domain, __saved_iova_start, size_to_unmap, NULL);
iova = __saved_iova_start;
}
arm_smmu_secure_domain_unlock(smmu_domain);
return iova - __saved_iova_start;
}