From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756838Ab0LRPzs (ORCPT ); Sat, 18 Dec 2010 10:55:48 -0500 Received: from mail-ww0-f44.google.com ([74.125.82.44]:61881 "EHLO mail-ww0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756263Ab0LRPzr (ORCPT ); Sat, 18 Dec 2010 10:55:47 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:cc:subject:date:message-id:x-mailer; b=sjzlMLmCnT2/4tNlCJsWCISmVa48QDrbt+Eghgeq0cw8IdwWaXPFPjdsI+O8zUtlw/ oP1ZLiU/ea5N25M5iU482F9GxnYgIJLTT2jvYKtAAinJTCM9VFbkoSzf6x9EVCkTL215 sktozlAu6JxQPtkjCwUf7RpXwo7c7pC8fXNgg= From: Jean-Michel Hautbois To: davem@davemloft.net Cc: richard.cochran@omicron.at, shemminger@vyatta.com, tj@kernel.org, randy.dunlap@oracle.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Jean-Michel Hautbois Subject: [PATCH 1/2] net: phy: balance disable/enable irq on change Date: Sat, 18 Dec 2010 16:55:22 +0100 Message-Id: <1292687723-31981-1-git-send-email-jhautbois@gmail.com> X-Mailer: git-send-email 1.7.0.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When phy interface changes its status, it calls phy_change() function. This function calls the interrupt disabling functions for the driver registered, but if this driver doesn't implement it, there is no IRQ disabling. After doing the work, we call enable_irq and not the respective driver function. This fixes it, as it could lead to an unbalanced IRQ. Signed-off-by: Jean-Michel Hautbois --- drivers/net/phy/phy.c | 12 ++++++++++-- 1 files changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 7670aac..b28f2ac 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -89,7 +89,8 @@ static int phy_config_interrupt(struct phy_device *phydev, u32 interrupts) phydev->interrupts = interrupts; if (phydev->drv->config_intr) err = phydev->drv->config_intr(phydev); - + else + err = -ENOSYS; return err; } @@ -541,6 +542,10 @@ static int phy_enable_interrupts(struct phy_device *phydev) return err; err = phy_config_interrupt(phydev, PHY_INTERRUPT_ENABLED); + if (err == -ENOSYS) { + err = 0; + enable_irq(phydev->irq); + } return err; } @@ -556,7 +561,10 @@ static int phy_disable_interrupts(struct phy_device *phydev) /* Disable PHY interrupts */ err = phy_config_interrupt(phydev, PHY_INTERRUPT_DISABLED); - if (err) + if (err == -ENOSYS) { + err = 0; + disable_irq(phydev->irq); + } else if (err != 0) goto phy_err; /* Clear the interrupt */ -- 1.7.0.4