abx500-chargalg: Add new sysfs interface to get current charge status
Allow a user to check on AB8500 charging status from debugfs.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index 0483e7c..d834566 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -2764,6 +2764,9 @@
enum ab8500_usb_state bm_usb_state;
unsigned mA = *((unsigned *)power);
+ if (!di)
+ return NOTIFY_DONE;
+
if (event != USB_EVENT_VBUS) {
dev_dbg(di->dev, "not a standard host, returning\n");
return NOTIFY_DONE;