From: Andrew Lunn <andrew@lunn.ch>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH net-next] net: phy: marvell: unlock after phy_select_page() failure
Date: Fri, 29 May 2020 14:25:45 +0000 [thread overview]
Message-ID: <20200529142545.GB869823@lunn.ch> (raw)
In-Reply-To: <20200529100207.GB1304852@mwanda>
On Fri, May 29, 2020 at 01:02:07PM +0300, Dan Carpenter wrote:
> We need to call phy_restore_page() even if phy_select_page() fails.
> Otherwise we are holding the phy_lock_mdio_bus() lock. This requirement
> is documented at the start of the phy_select_page() function.
>
> Fixes: a618e86da91d ("net : phy: marvell: Speedup TDR data retrieval by only changing page once")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Lunn <andrew@lunn.ch>
To: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
Russell King <linux@armlinux.org.uk>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: Re: [PATCH net-next] net: phy: marvell: unlock after phy_select_page() failure
Date: Fri, 29 May 2020 16:25:45 +0200 [thread overview]
Message-ID: <20200529142545.GB869823@lunn.ch> (raw)
In-Reply-To: <20200529100207.GB1304852@mwanda>
On Fri, May 29, 2020 at 01:02:07PM +0300, Dan Carpenter wrote:
> We need to call phy_restore_page() even if phy_select_page() fails.
> Otherwise we are holding the phy_lock_mdio_bus() lock. This requirement
> is documented at the start of the phy_select_page() function.
>
> Fixes: a618e86da91d ("net : phy: marvell: Speedup TDR data retrieval by only changing page once")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
next prev parent reply other threads:[~2020-05-29 14:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-29 10:02 [PATCH net-next] net: phy: marvell: unlock after phy_select_page() failure Dan Carpenter
2020-05-29 10:02 ` Dan Carpenter
2020-05-29 14:25 ` Andrew Lunn [this message]
2020-05-29 14:25 ` Andrew Lunn
2020-05-29 19:48 ` David Miller
2020-05-29 19:48 ` David Miller
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