linux-kernel - Re: [PATCH] iommu/mediatek-v1: Fix an error handling path in mtk_iommu_v1

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Message-ID: <51e82ede-a6d4-8e7b-88d1-93a1aba1f845@collabora.com>
Date:   Tue, 20 Dec 2022 10:42:42 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Yong Wu <yong.wu@...iatek.com>, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Honghui Zhang <honghui.zhang@...iatek.com>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Joerg Roedel <jroedel@...e.de>, iommu@...ts.linux.dev,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] iommu/mediatek-v1: Fix an error handling path in
 mtk_iommu_v1_probe()

Il 19/12/22 19:06, Christophe JAILLET ha scritto:
> A clk, prepared and enabled in mtk_iommu_v1_hw_init(), is not released in
> the error handling path of mtk_iommu_v1_probe().
> 
> Add the corresponding clk_disable_unprepare(), as already done in the
> remove function.
> 
> Fixes: b17336c55d89 ("iommu/mediatek: add support for mtk iommu generation one HW")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
> Reviewed-by: Matthias Brugger <matthias.bgg@...il.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>