power_supply: Fix race in power_supply_uevent

[pandora-kernel.git] / drivers / power / power_supply_sysfs.c

diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index 13399d1..49215da 100644 (file)
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -115,6 +115,7 @@ static struct device_attribute power_supply_attrs[] = {
        /* Properties of type `const char *' */
        POWER_SUPPLY_ATTR(model_name),
        POWER_SUPPLY_ATTR(manufacturer),
+       POWER_SUPPLY_ATTR(serial_number),
 };
 
 static ssize_t power_supply_show_static_attrs(struct device *dev,
@@ -200,7 +201,7 @@ int power_supply_uevent(struct device *dev, struct kobj_uevent_env *env)
 
        dev_dbg(dev, "uevent\n");
 
-       if (!psy) {
+       if (!psy || !psy->dev) {
                dev_dbg(dev, "No power supply yet\n");
                return ret;
        }