power: supply: Fix typo in power_supply_check_supplies

It seems to be a typo, there is no actual BUG, but it's better to
fix it to avoid any possible BUG after we change the type of
supplied_from.

Signed-off-by: Schspa Shi <schspa@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/power_supply_core.c

@@ -263,13 +263,13 @@ static int power_supply_check_supplies(struct power_supply *psy)
 		return 0;
 
 	/* All supplies found, allocate char ** array for filling */
-	psy->supplied_from = devm_kzalloc(&psy->dev, sizeof(psy->supplied_from),
+	psy->supplied_from = devm_kzalloc(&psy->dev, sizeof(*psy->supplied_from),
 					  GFP_KERNEL);
 	if (!psy->supplied_from)
 		return -ENOMEM;
 
 	*psy->supplied_from = devm_kcalloc(&psy->dev,
-					   cnt - 1, sizeof(char *),
+					   cnt - 1, sizeof(**psy->supplied_from),
 					   GFP_KERNEL);
 	if (!*psy->supplied_from)
 		return -ENOMEM;