ds2760_battery: delay power supply registration

This fixes a race condition I recently introduced with the PMOD feature
addition (cef437e3: "w1: ds2760_battery: add support for sleep mode
feature").

Postpone the call to power_supply_register() to fix it.

Signed-off-by: Daniel Mack <daniel@caiaq.de>
Cc: Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>
Acked-by: Matt Reimer <mreimer@vpop.net>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

diff --git a/drivers/power/ds2760_battery.c b/drivers/power/ds2760_battery.c
index 520b5c4..cf07c43 100644 (file)
--- a/drivers/power/ds2760_battery.c
+++ b/drivers/power/ds2760_battery.c
@@ -381,12 +381,6 @@ static int ds2760_battery_probe(struct platform_device *pdev)
 
        di->charge_status = POWER_SUPPLY_STATUS_UNKNOWN;
 
-       retval = power_supply_register(&pdev->dev, &di->bat);
-       if (retval) {
-               dev_err(di->dev, "failed to register battery\n");
-               goto batt_failed;
-       }
-
        /* enable sleep mode feature */
        ds2760_battery_read_status(di);
        status = di->raw[DS2760_STATUS_REG];
@@ -397,6 +391,12 @@ static int ds2760_battery_probe(struct platform_device *pdev)
 
        ds2760_battery_write_status(di, status);
 
+       retval = power_supply_register(&pdev->dev, &di->bat);
+       if (retval) {
+               dev_err(di->dev, "failed to register battery\n");
+               goto batt_failed;
+       }
+
        INIT_DELAYED_WORK(&di->monitor_work, ds2760_battery_work);
        di->monitor_wqueue = create_singlethread_workqueue(dev_name(&pdev->dev));
        if (!di->monitor_wqueue) {