From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:35222 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932679AbeB1P33 (ORCPT ); Wed, 28 Feb 2018 10:29:29 -0500 Subject: Patch "of_mdio: avoid MDIO bus removal when a PHY is missing" has been added to the 4.14-stable tree To: madalin.bucur@nxp.com, alexander.levin@verizon.com, andrew@lunn.ch, davem@davemloft.net, gregkh@linuxfoundation.org Cc: , From: Date: Wed, 28 Feb 2018 16:26:53 +0100 Message-ID: <15198316138173@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled of_mdio: avoid MDIO bus removal when a PHY is missing to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: of_mdio-avoid-mdio-bus-removal-when-a-phy-is-missing.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Wed Feb 28 16:23:28 CET 2018 From: Madalin Bucur Date: Tue, 9 Jan 2018 14:43:34 +0200 Subject: of_mdio: avoid MDIO bus removal when a PHY is missing From: Madalin Bucur [ Upstream commit 95f566de0269a0c59fd6a737a147731302136429 ] If one of the child devices is missing the of_mdiobus_register_phy() call will return -ENODEV. When a missing device is encountered the registration of the remaining PHYs is stopped and the MDIO bus will fail to register. Propagate all errors except ENODEV to avoid it. Signed-off-by: Madalin Bucur Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/of/of_mdio.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -228,7 +228,12 @@ int of_mdiobus_register(struct mii_bus * rc = of_mdiobus_register_phy(mdio, child, addr); else rc = of_mdiobus_register_device(mdio, child, addr); - if (rc) + + if (rc == -ENODEV) + dev_err(&mdio->dev, + "MDIO device at address %d is missing.\n", + addr); + else if (rc) goto unregister; } @@ -252,7 +257,7 @@ int of_mdiobus_register(struct mii_bus * if (of_mdiobus_child_is_phy(child)) { rc = of_mdiobus_register_phy(mdio, child, addr); - if (rc) + if (rc && rc != -ENODEV) goto unregister; } } Patches currently in stable-queue which might be from madalin.bucur@nxp.com are queue-4.14/of_mdio-avoid-mdio-bus-removal-when-a-phy-is-missing.patch