linux-kernel - Re: [PATCH v4 2/2] iommu/tegra-smmu: Expand mutex protection range

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 8 Oct 2020 11:56:15 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Nicolin Chen <nicoleotsuka@...il.com>
Cc:     joro@...tes.org, vdumpa@...dia.com, jonathanh@...dia.com,
        digetx@...il.com, linux-tegra@...r.kernel.org,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        hch@...radead.org
Subject: Re: [PATCH v4 2/2] iommu/tegra-smmu: Expand mutex protection range

On Mon, Sep 28, 2020 at 11:13:25PM -0700, Nicolin Chen wrote:
> This is used to protect potential race condition at use_count.
> since probes of client drivers, calling attach_dev(), may run
> concurrently.
> 
> Signed-off-by: Nicolin Chen <nicoleotsuka@...il.com>
> ---
> 
> Changelog
> v3->v4:
>  * Fixed typo "Expend" => "Expand"
> v2->v3:
>  * Renamed label "err_unlock" to "unlock"
> v1->v2:
>  * N/A
> 
>  drivers/iommu/tegra-smmu.c | 34 +++++++++++++++++++++-------------
>  1 file changed, 21 insertions(+), 13 deletions(-)

Acked-by: Thierry Reding <treding@...dia.com>

Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)