[PATCH] platform/chrome: cros-ec: make init_lock static

[Ben Dooks (Codethink)]

The init_lock is not declared or used outside of cros_ec_ishtp.c
so make it static to avoid the following warning:

drivers/platform/chrome/cros_ec_ishtp.c:79:1: warning: symbol 'init_lock' was not declared. Should it be static?

Signed-off-by: Ben Dooks (Codethink) <ben.dooks@xxxxxxxxxxxxxxx>
---
Cc: Benson Leung <bleung@xxxxxxxxxxxx>
Cc: Enric Balletbo i Serra <enric.balletbo@xxxxxxxxxxxxx>
Cc: Guenter Roeck <groeck@xxxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
 drivers/platform/chrome/cros_ec_ishtp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/chrome/cros_ec_ishtp.c b/drivers/platform/chrome/cros_ec_ishtp.c
index e5996821d08b..5f8e76f3022a 100644
--- a/drivers/platform/chrome/cros_ec_ishtp.c
+++ b/drivers/platform/chrome/cros_ec_ishtp.c
@@ -76,7 +76,7 @@ struct cros_ish_in_msg {
  *
  * The writers are .reset() and .probe() function.
  */
-DECLARE_RWSEM(init_lock);
+static DECLARE_RWSEM(init_lock);
 
 /**
  * struct response_info - Encapsulate firmware response related
-- 
2.24.0