linux-kernel - Re: [PATCH v2] media: platform: mtk-mdp3: Fix return value check in mdp

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Message-ID: <3e8aa2d9-6cd9-b155-c7b3-551fb574ac90@collabora.com>
Date:   Thu, 1 Dec 2022 10:45:41 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Qiheng Lin <linqiheng@...wei.com>, mchehab@...nel.org,
        matthias.bgg@...il.com
Cc:     linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] media: platform: mtk-mdp3: Fix return value check in
 mdp_probe()

Il 01/12/22 03:35, Qiheng Lin ha scritto:
> In case of error, the function mtk_mutex_get()
> returns ERR_PTR() and never returns NULL. The NULL test in the
> return value check should be replaced with IS_ERR().
> And also fix the err_return case.
> 
> Fixes: 61890ccaefaf ("media: platform: mtk-mdp3: add MediaTek MDP3 driver")
> Signed-off-by: Qiheng Lin <linqiheng@...wei.com>

Thanks!

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