linux-kernel - Re: [PATCH] iommu/arm-smmu-v3: Avoid uninitialized asid in case of error

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Date: Wed,  5 Jun 2024 16:45:46 +0100
From: Will Deacon <will@...nel.org>
To: robin.murphy@....com,
	linux-arm-kernel@...ts.infradead.org,
	iommu@...ts.linux.dev,
	Mostafa Saleh <smostafa@...gle.com>
Cc: catalin.marinas@....com,
	kernel-team@...roid.com,
	Will Deacon <will@...nel.org>,
	linux-kernel@...r.kernel.org,
	joro@...tes.org,
	nicolinc@...dia.com,
	mshavit@...gle.com,
	Dan Carpenter <dan.carpenter@...aro.org>,
	Jason Gunthorpe <jgg@...pe.ca>
Subject: Re: [PATCH] iommu/arm-smmu-v3: Avoid uninitialized asid in case of error

On Tue, 04 Jun 2024 18:52:18 +0000, Mostafa Saleh wrote:
> Static checker is complaining about the ASID possibly set uninitialized.
> This only happens in case of error and this value would be ignored anyway.
> 
> A simple fix would be just to initialize the local variable to zero,
> this path will only be reached on the first attach to a domain where
> the CD is already initialized to zero.
> This avoids having to bloat the function with an error path.
> 
> [...]

Applied to will (for-joerg/arm-smmu/updates), thanks!

[1/1] iommu/arm-smmu-v3: Avoid uninitialized asid in case of error
      https://git.kernel.org/will/c/d3867e714831

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev