regulator: core: Actually use the data in _notifier_call_chain()

Reported-by: Pankaj Jangra <jangra.pankaj9@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 3cbe312..52a9bae 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2657,7 +2657,7 @@
 				  unsigned long event, void *data)
 {
 	/* call rdev chain first */
-	blocking_notifier_call_chain(&rdev->notifier, event, NULL);
+	blocking_notifier_call_chain(&rdev->notifier, event, data);
 }
 
 /**