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Date:   Thu, 8 Oct 2020 11:56:15 +0200
From:   Thierry Reding <thierry.reding@gmail.com>
To:     Nicolin Chen <nicoleotsuka@gmail.com>
Cc:     joro@8bytes.org, vdumpa@nvidia.com, jonathanh@nvidia.com,
        digetx@gmail.com, linux-tegra@vger.kernel.org,
        iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
        hch@infradead.org
Subject: Re: [PATCH v4 2/2] iommu/tegra-smmu: Expand mutex protection range
Message-ID: <20201008095615.GC2349275@ulmo>
References: <20200929061325.10197-1-nicoleotsuka@gmail.com>
 <20200929061325.10197-3-nicoleotsuka@gmail.com>
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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.
>=20
> Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
> ---
>=20
> Changelog
> v3->v4:
>  * Fixed typo "Expend" =3D> "Expand"
> v2->v3:
>  * Renamed label "err_unlock" to "unlock"
> v1->v2:
>  * N/A
>=20
>  drivers/iommu/tegra-smmu.c | 34 +++++++++++++++++++++-------------
>  1 file changed, 21 insertions(+), 13 deletions(-)

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

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