power_supply: Fix regression for 'type' property

Commit 5f487cd34f4337f9bc27ca19da72a39d1b0a0ab4 (power_supply: Use
attribute groups) causes a regression the power supply core does not
export the 'type' attribute anymore.

POWER_SUPPLY_PROP_TYPE is handled by the power supply core without the
low-level driver, so power_supply_attr_is_visible() must always return
the entry as readable.

Reported-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Tested-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index 6a86cdfd79fa..9d30eeb8c810 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -179,14 +179,16 @@ static mode_t power_supply_attr_is_visible(struct kobject *kobj,
 {
         struct device *dev = container_of(kobj, struct device, kobj);
         struct power_supply *psy = dev_get_drvdata(dev);
+        mode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
         int i;
 
+        if (attrno == POWER_SUPPLY_PROP_TYPE)
+                return mode;
+
         for (i = 0; i < psy->num_properties; i++) {
                 int property = psy->properties[i];
 
                 if (property == attrno) {
-                        mode_t mode = S_IRUSR | S_IRGRP | S_IROTH;
-
                         if (psy->property_is_writeable &&
                             psy->property_is_writeable(psy, property) > 0)
                                 mode |= S_IWUSR;