linux-kernel - Re: [PATCH v2] stmmac: fix check for phydev being open

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Message-ID: <55EE008E.6040405@cogentembedded.com>
Date:	Tue, 8 Sep 2015 00:24:30 +0300
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	Alexey Brodkin <Alexey.Brodkin@...opsys.com>,
	netdev@...r.kernel.org
Cc:	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	David Miller <davem@...emloft.net>
Subject: Re: [PATCH v2] stmmac: fix check for phydev being open

On 09/07/2015 11:50 PM, Alexey Brodkin wrote:

> Current implementation via IS_ERR(phydev) may make no sense because
> of_phy_attach() returns NULL on failure instead of error value.

    Not of_phy_connect()?

> Still for checking result of phy_connect() IS_ERR() is useful.
>
> To address both situations we use combined IS_ERR_OR_NULL() check.
>
> Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>
> Cc: linux-kernel@...r.kernel.org
> Cc: stable@...r.kernel.org
> Cc: David Miller <davem@...emloft.net>
> Cc: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
> Signed-off-by: Alexey Brodkin <abrodkin@...opsys.com>

MBR, Sergei

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