[PATCH 2/4] soc: apple: tunable: Allow passing NULL to tunable_apply

[Sasha Finkelstein]

Make it easier to have optional tunables by tolerating NULL entries and
doing nothing when one is passed

Signed-off-by: Sasha Finkelstein <k@xxxxxxxxxxxxxx>
---
 drivers/soc/apple/tunable.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/soc/apple/tunable.c b/drivers/soc/apple/tunable.c
index 659323839171..e89e8f9bb455 100644
--- a/drivers/soc/apple/tunable.c
+++ b/drivers/soc/apple/tunable.c
@@ -63,6 +63,8 @@ void apple_tunable_apply(void __iomem *regs, struct apple_tunable *tunable)
 {
 	size_t i;
 
+	if (!tunable)
+		return;
 	for (i = 0; i < tunable->sz; ++i) {
 		u32 val, old_val;
 

-- 
2.56.0