Messages in this thread | | | From | Will Deacon <> | Subject | Re: [PATCH v2] iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails | Date | Fri, 11 Jun 2021 17:15:44 +0100 |
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On Thu, 10 Jun 2021 10:54:29 +0800, Xiyu Yang wrote: > arm_smmu_rpm_get() invokes pm_runtime_get_sync(), which increases the > refcount of the "smmu" even though the return value is less than 0. > > The reference counting issue happens in some error handling paths of > arm_smmu_rpm_get() in its caller functions. When arm_smmu_rpm_get() > fails, the caller functions forget to decrease the refcount of "smmu" > increased by arm_smmu_rpm_get(), causing a refcount leak. > > [...]
Applied to will (for-joerg/arm-smmu/updates), thanks!
[1/1] iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails https://git.kernel.org/will/c/1adf30f198c2
Cheers, -- Will
https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev
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