netdev - Re: [PATCH net-next] net: phy: icplus: Call phy_restore_page() when phy_select

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Message-ID: <20210217100420.GD1463@shell.armlinux.org.uk>
Date:   Wed, 17 Feb 2021 10:04:20 +0000
From:   Russell King - ARM Linux admin <linux@...linux.org.uk>
To:     Dan Carpenter <dan.carpenter@...cle.com>
Cc:     Andrew Lunn <andrew@...n.ch>, Michael Walle <michael@...le.cc>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Subject: Re: [PATCH net-next] net: phy: icplus: Call phy_restore_page() when
 phy_select_page() fails

On Wed, Feb 17, 2021 at 09:17:59AM +0300, Dan Carpenter wrote:
> Smatch warns that there is a locking issue in this function:
> 
> drivers/net/phy/icplus.c:273 ip101a_g_config_intr_pin()
> warn: inconsistent returns '&phydev->mdio.bus->mdio_lock'.
>   Locked on  : 242
>   Unlocked on: 273
> 
> It turns out that the comments in phy_select_page() say we have to call
> phy_restore_page() even if the call to phy_select_page() fails.

It seems it's a total waste of time documenting functions...

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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