linux-kernel - Re: [PATCH -next] iommu/sun50i: Fix return value check in sun50i_iommu

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Message-ID: <20200519120638.GG18353@8bytes.org>
Date:   Tue, 19 May 2020 14:06:38 +0200
From:   Joerg Roedel <joro@...tes.org>
To:     Wei Yongjun <weiyongjun1@...wei.com>
Cc:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Maxime Ripard <maxime@...no.tech>,
        iommu@...ts.linux-foundation.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org, Hulk Robot <hulkci@...wei.com>
Subject: Re: [PATCH -next] iommu/sun50i: Fix return value check in
 sun50i_iommu_probe()

On Tue, May 19, 2020 at 09:18:57AM +0000, Wei Yongjun wrote:
> In case of error, the function devm_platform_ioremap_resource() returns
> ERR_PTR() not NULL. The NULL test in the return value check must be
> replaced with IS_ERR().
> 
> Fixes: 4100b8c229b3 ("iommu: Add Allwinner H6 IOMMU driver")
> Reported-by: Hulk Robot <hulkci@...wei.com>
> Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
> ---
>  drivers/iommu/sun50i-iommu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks.