Re: [PATCH v3] iommu/io-pgtable-arm-v7s: Add error handle for page table allocation failure
From: Will Deacon <will@kernel.org>
Date: 2021-12-14 15:18:50
Also in:
linux-iommu, linux-mediatek, lkml, stable
On Tue, 7 Dec 2021 19:33:15 +0800, yf.wang@mediatek.com wrote:
From: Yunfei Wang <redacted> In __arm_v7s_alloc_table function: iommu call kmem_cache_alloc to allocate page table, this function allocate memory may fail, when kmem_cache_alloc fails to allocate table, call virt_to_phys will be abnomal and return unexpected phys and goto out_free, then call kmem_cache_free to release table will trigger KE, __get_free_pages and free_pages have similar problem, so add error handle for page table allocation failure. [...]
Applied to will (for-joerg/arm-smmu/updates), thanks!
[1/1] iommu/io-pgtable-arm-v7s: Add error handle for page table allocation failure
https://git.kernel.org/will/c/a556cfe4cabc
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
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