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Date: Sat, 19 Nov 2022 10:09:48 +0100
From: Joerg Roedel <joro@8bytes.org>
To: Yang Yingliang <yangyingliang@huawei.com>
Cc: iommu@lists.linux.dev, linux-mediatek@lists.infradead.org,
	yong.wu@mediatek.com, will@kernel.org, robin.murphy@arm.com,
	matthias.bgg@gmail.com
Subject: Re: [PATCH] iommu/mediatek: check return value after calling
 platform_get_resource()
Message-ID: <Y3idXEvo8/uBl4UV@8bytes.org>
References: <20221029103550.3774365-1-yangyingliang@huawei.com>
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In-Reply-To: <20221029103550.3774365-1-yangyingliang@huawei.com>

On Sat, Oct 29, 2022 at 06:35:50PM +0800, Yang Yingliang wrote:
> platform_get_resource() may return NULL pointer, we need check its
> return value to avoid null-ptr-deref in resource_size().
> 
> Fixes: 42d57fc58aeb ("iommu/mediatek: Initialise/Remove for multi bank dev")
> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
> ---
>  drivers/iommu/mtk_iommu.c | 2 ++
>  1 file changed, 2 insertions(+)

Applied, thanks.