[PATCH] regulator: core: Fix argument to _notifier_call_chain call

[Axel Lin <axel.lin@gmail.com>]

Pass the address of best_val rather than the value of best_val for the third
argument to _notifier_call_chain().

This fixes below build warning:
  CC      drivers/regulator/core.o
drivers/regulator/core.c: In function '_regulator_do_set_voltage':
drivers/regulator/core.c:2183:10: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
 drivers/regulator/core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index f092588..37ce62b 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2180,7 +2180,7 @@ static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 
 	if (ret == 0 && best_val >= 0)
 		_notifier_call_chain(rdev, REGULATOR_EVENT_VOLTAGE_CHANGE,
-				     (void *)best_val);
+				     (void *)&best_val);
 
 	trace_regulator_set_voltage_complete(rdev_get_name(rdev), best_val);
 
-- 
1.7.9.5