From 73b4a087ba4c0d0d52519769320fa684185c563e Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Thu, 4 Sep 2014 17:31:34 +0530 Subject: power-supply: Check for failures only when we can fail In power_supply_show_property() routine, we call ->get_property() conditionally and should check for failure in that case only. There is no point comparing 'ret' for errors when 'ret' is surely zero. Signed-off-by: Viresh Kumar Signed-off-by: Sebastian Reichel --- drivers/power/power_supply_sysfs.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c index 7e4726d..62653f5 100644 --- a/drivers/power/power_supply_sysfs.c +++ b/drivers/power/power_supply_sysfs.c @@ -73,19 +73,20 @@ static ssize_t power_supply_show_property(struct device *dev, const ptrdiff_t off = attr - power_supply_attrs; union power_supply_propval value; - if (off == POWER_SUPPLY_PROP_TYPE) + if (off == POWER_SUPPLY_PROP_TYPE) { value.intval = psy->type; - else + } else { ret = psy->get_property(psy, off, &value); - if (ret < 0) { - if (ret == -ENODATA) - dev_dbg(dev, "driver has no data for `%s' property\n", - attr->attr.name); - else if (ret != -ENODEV) - dev_err(dev, "driver failed to report `%s' property: %zd\n", - attr->attr.name, ret); - return ret; + if (ret < 0) { + if (ret == -ENODATA) + dev_dbg(dev, "driver has no data for `%s' property\n", + attr->attr.name); + else if (ret != -ENODEV) + dev_err(dev, "driver failed to report `%s' property: %zd\n", + attr->attr.name, ret); + return ret; + } } if (off == POWER_SUPPLY_PROP_STATUS) -- cgit v1.1