power_supply: Replace strict_strtoul() with kstrtoul()

The usage of strict_strtoul() is not preferred, because strict_strtoul()
is obsolete. Thus, kstrtoul() should be used.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>

drivers/power/ab8500_fg.c

@@ -2465,9 +2465,9 @@ static ssize_t charge_full_store(struct ab8500_fg *di, const char *buf,
 				 size_t count)
 {
 	unsigned long charge_full;
-	ssize_t ret = -EINVAL;
+	ssize_t ret;
 
-	ret = strict_strtoul(buf, 10, &charge_full);
+	ret = kstrtoul(buf, 10, &charge_full);
 
 	dev_dbg(di->dev, "Ret %zd charge_full %lu", ret, charge_full);
 
@@ -2489,7 +2489,7 @@ static ssize_t charge_now_store(struct ab8500_fg *di, const char *buf,
 	unsigned long charge_now;
 	ssize_t ret;
 
-	ret = strict_strtoul(buf, 10, &charge_now);
+	ret = kstrtoul(buf, 10, &charge_now);
 
 	dev_dbg(di->dev, "Ret %zd charge_now %lu was %d",
 		ret, charge_now, di->bat_cap.prev_mah);

drivers/power/pcf50633-charger.c

@@ -191,9 +191,9 @@ static ssize_t set_usblim(struct device *dev,
 	unsigned long ma;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &ma);
+	ret = kstrtoul(buf, 10, &ma);
 	if (ret)
-		return -EINVAL;
+		return ret;
 
 	pcf50633_mbc_usb_curlim_set(mbc->pcf, ma);
 
@@ -228,9 +228,9 @@ static ssize_t set_chglim(struct device *dev,
 	if (!mbc->pcf->pdata->charger_reference_current_ma)
 		return -ENODEV;
 
-	ret = strict_strtoul(buf, 10, &ma);
+	ret = kstrtoul(buf, 10, &ma);
 	if (ret)
-		return -EINVAL;
+		return ret;
 
 	mbcc5 = (ma << 8) / mbc->pcf->pdata->charger_reference_current_ma;
 	if (mbcc5 > 255)