Re: [PATCH] iommu/rockchip: Fix silent probe success when all MMU resources fail
Will Deacon <[email protected]>
| Newsgroups | org.infradead.lists.linux-rockchip,dev.linux.lists.iommu,org.infradead.lists.linux-arm-kernel,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
On Thu, 23 Jul 2026 21:26:43 +0800, ZhaoJinming wrote:
> When all MMU register mappings fail in rk_iommu_probe(), the error
> path returns PTR_ERR(iommu->bases[0]). However, bases[0] can be NULL
> if the first platform_get_resource() also returned NULL, causing
> PTR_ERR(NULL) to evaluate to 0 and the probe to succeed silently.
>
> Return -ENODEV directly instead.
>
> [...]
Applied to iommu (rockchip), thanks!
[1/1] iommu/rockchip: Fix silent probe success when all MMU resources fail
https://git.kernel.org/iommu/c/ea0a9d453f60
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
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