linux-kernel - Re: [PATCH v1 1/5] drm/tegra: dc: Balance IOMMU group refcounting

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Message-ID: <20180504121927.GU13459@ulmo>
Date:   Fri, 4 May 2018 14:19:27 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/5] drm/tegra: dc: Balance IOMMU group refcounting

On Fri, May 04, 2018 at 02:47:19AM +0300, Dmitry Osipenko wrote:
> Remove unneeded iommu_group_get() and add missing iommu_group_put(),
> correcting IOMMU group refcount. This is a minor correction / cleanup that
> doesn't really fix anything because Tegra's IOMMU driver are built-in and
> hence groups refcounting can't hold IOMMU driver from unloading.
> 
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
>  drivers/gpu/drm/tegra/dc.c  | 35 +++++++++++++++++------------------
>  drivers/gpu/drm/tegra/dc.h  |  2 +-
>  drivers/gpu/drm/tegra/drm.h |  2 +-
>  3 files changed, 19 insertions(+), 20 deletions(-)

Applied, thanks.

Thierry

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