From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757143Ab2CMK4V (ORCPT ); Tue, 13 Mar 2012 06:56:21 -0400 Received: from va3ehsobe005.messaging.microsoft.com ([216.32.180.31]:45816 "EHLO va3outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753150Ab2CMK4U (ORCPT ); Tue, 13 Mar 2012 06:56:20 -0400 X-SpamScore: 3 X-BigFish: VS3(zzzz1202h1082kzz8275dhz2dh2a8h668h839h) X-Forefront-Antispam-Report: CIP:70.37.183.190;KIP:(null);UIP:(null);IPV:NLI;H:mail.freescale.net;RD:none;EFVD:NLI From: Dong Aisheng To: , , CC: , , , Subject: [PATCH 1/1] net: phylib: add error checking if no phy found Date: Tue, 13 Mar 2012 18:58:22 +0800 Message-ID: <1331636302-18256-1-git-send-email-b29396@freescale.com> X-Mailer: git-send-email 1.7.0.4 MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: freescale.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dong Aisheng Signed-off-by: Dong Aisheng --- drivers/net/phy/mdio_bus.c | 11 ++++++++++- 1 files changed, 10 insertions(+), 1 deletions(-) diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 88cc5db..d8e044d 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -101,6 +101,7 @@ static struct class mdio_bus_class = { int mdiobus_register(struct mii_bus *bus) { int i, err; + u32 phynum = 0; if (NULL == bus || NULL == bus->name || NULL == bus->read || @@ -134,12 +135,20 @@ int mdiobus_register(struct mii_bus *bus) if (IS_ERR(phydev)) { err = PTR_ERR(phydev); goto error; + } else if (phydev != NULL) { + phynum++; } } } + if (!phynum) { + err = -ENODEV; + printk(KERN_ERR "%s: no phys found\n", bus->name); + goto error; + } + bus->state = MDIOBUS_REGISTERED; - pr_info("%s: probed\n", bus->name); + pr_info("%s: %d phys probed\n", bus->name, phynum); return 0; error: -- 1.7.0.4