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Message-ID: <CAF6AEGuVsuOxhFONDpJF4EsY-KWQu+Vna_CM9dPhrFS_9FQsqA@mail.gmail.com>
Date:   Mon, 21 Sep 2020 11:27:28 -0700
From:   Rob Clark <robdclark@...il.com>
To:     Will Deacon <will@...nel.org>
Cc:     Yu Kuai <yukuai3@...wei.com>,
        "list@....net:IOMMU DRIVERS <iommu@...ts.linux-foundation.org>, Joerg
        Roedel <joro@...tes.org>," <joro@...tes.org>,
        "list@....net:IOMMU DRIVERS <iommu@...ts.linux-foundation.org>, Joerg
        Roedel <joro@...tes.org>," <iommu@...ts.linux-foundation.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        yi.zhang@...wei.com
Subject: Re: [PATCH] iommu/qcom: add missing put_device() call in qcom_iommu_of_xlate()

On Mon, Sep 21, 2020 at 10:50 AM Will Deacon <will@...nel.org> wrote:
>
> On Fri, Sep 18, 2020 at 09:13:57AM +0800, Yu Kuai wrote:
> > if of_find_device_by_node() succeed, qcom_iommu_of_xlate() doesn't have
> > a corresponding put_device(). Thus add put_device() to fix the exception
> > handling for this function implementation.
> >
> > Fixes: e86d1aa8b60f ("iommu/arm-smmu: Move Arm SMMU drivers into their own subdirectory")
>
> That's probably not accurate, in that this driver used to live under
> drivers/iommu/ and assumedly had this bug there as well.
>
> > Signed-off-by: Yu Kuai <yukuai3@...wei.com>
> > ---
> >  drivers/iommu/arm/arm-smmu/qcom_iommu.c | 5 ++++-
> >  1 file changed, 4 insertions(+), 1 deletion(-)
>
> I guess Rob will pick this up.

Probably overkill for me to send a pull req for a single patch, if you
want to pick it up:

Acked-by: Rob Clark <robdclark@...il.com>

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