linux-kernel - Re: [PATCH] net: hns: set correct return value

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Message-Id: <20171101.121812.969003043230573555.davem@davemloft.net>
Date:   Wed, 01 Nov 2017 12:18:12 +0900 (KST)
From:   David Miller <davem@...emloft.net>
To:     bianpan2016@....com
Cc:     yisen.zhuang@...wei.com, salil.mehta@...wei.com,
        lipeng321@...wei.com, linyunsheng@...wei.com, yankejian@...wei.com,
        tklauser@...tanz.ch, arnd@...db.de, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: hns: set correct return value

From: Pan Bian <bianpan2016@....com>
Date: Mon, 30 Oct 2017 16:50:01 +0800

> The function of_parse_phandle() returns a NULL pointer if it cannot
> resolve a phandle property to a device_node pointer. In function
> hns_nic_dev_probe(), its return value is passed to PTR_ERR to extract
> the error code. However, in this case, the extracted error code will
> always be zero, which is unexpected.
> 
> Signed-off-by: Pan Bian <bianpan2016@....com>

Applied.