linux-kernel - Re: [PATCH v4] iommu: remove redundant parameter check in tegra_smmu_debugfs

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Message-ID: <362e4343-dcf1-58fc-7ac9-756c65bb0df6@linux.intel.com>
Date:   Fri, 14 Jul 2023 10:57:38 +0800
From:   Baolu Lu <baolu.lu@...ux.intel.com>
To:     Minjie Du <duminjie@...o.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Krishna Reddy <vdumpa@...dia.com>,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        "open list:TEGRA IOMMU DRIVERS" <linux-tegra@...r.kernel.org>,
        "open list:IOMMU SUBSYSTEM" <iommu@...ts.linux.dev>,
        open list <linux-kernel@...r.kernel.org>
Cc:     baolu.lu@...ux.intel.com, opensource.kernel@...o.com,
        Thierry Reding <treding@...dia.com>
Subject: Re: [PATCH v4] iommu: remove redundant parameter check in
 tegra_smmu_debugfs_init()

On 2023/7/13 15:28, Minjie Du wrote:
> debugfs_create_file() will return early if smmu->debugfs is an error
> pointer, so an extra error check is not needed.
> 
> Signed-off-by: Minjie Du<duminjie@...o.com>
> Acked-by: Thierry Reding<treding@...dia.com>

Greg keeps reminding that no error branch for debugfs, so

Reviewed-by: Lu Baolu <baolu.lu@...ux.intel.com>

Best regards,
baolu