From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Yinghai Lu To: Jesse Barnes , x86 Cc: Bjorn Helgaas , Andrew Morton , Linus Torvalds , Greg Kroah-Hartman , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Yinghai Lu Subject: [PATCH -v3 15/47] PCI, sysfs: Clean up rescan/remove with scheule_callback Date: Sun, 18 Mar 2012 22:46:04 -0700 Message-Id: <1332135996-13860-16-git-send-email-yinghai@kernel.org> In-Reply-To: <1332135996-13860-1-git-send-email-yinghai@kernel.org> References: <1332135996-13860-1-git-send-email-yinghai@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: Change to use three return according to Bjorn. Suggested-by: Bjorn Helgaas Signed-off-by: Yinghai Lu --- drivers/pci/pci-sysfs.c | 37 ++++++++++++++++++++----------------- 1 files changed, 20 insertions(+), 17 deletions(-) diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 1794508..4697afe 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -338,17 +338,17 @@ static ssize_t dev_bridge_rescan_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - int ret = 0; + int err; unsigned long val; if (kstrtoul(buf, 0, &val) < 0) return -EINVAL; + if (!val) + return count; - if (val) - ret = device_schedule_callback(dev, bridge_rescan_callback); - - if (ret) - count = ret; + err = device_schedule_callback(dev, bridge_rescan_callback); + if (err) + return err; return count; } @@ -369,7 +369,7 @@ static ssize_t remove_store(struct device *dev, struct device_attribute *dummy, const char *buf, size_t count) { - int ret = 0; + int err; unsigned long val; if (strict_strtoul(buf, 0, &val) < 0) @@ -378,10 +378,13 @@ remove_store(struct device *dev, struct device_attribute *dummy, /* An attribute cannot be unregistered by one of its own methods, * so we have to use this roundabout approach. */ - if (val) - ret = device_schedule_callback(dev, remove_callback); - if (ret) - count = ret; + if (!val) + return count; + + err = device_schedule_callback(dev, remove_callback); + if (err) + return err; + return count; } @@ -397,17 +400,17 @@ static ssize_t dev_bus_rescan_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - int ret = 0; + int err; unsigned long val; if (strict_strtoul(buf, 0, &val) < 0) return -EINVAL; + if (!val) + return count; - if (val) - ret = device_schedule_callback(dev, bus_rescan_callback); - - if (ret) - count = ret; + err = device_schedule_callback(dev, bus_rescan_callback); + if (err) + return err; return count; } -- 1.7.7