linux-kernel - [PATCH] drivers: regulator: core: fix 'unused' warning

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Date:	Tue, 26 Jan 2016 16:09:13 +0300
From:	Yury Norov <ynorov@...iumnetworks.com>
To:	<s.hauer@...gutronix.de>, <broonie@...nel.org>
CC:	<lgirdwood@...il.com>, <linux-kernel@...r.kernel.org>,
	Yury Norov <ynorov@...iumnetworks.com>
Subject: [PATCH] drivers: regulator: core: fix 'unused' warning

Patch 9f01cd4a91 (regulator: core: introduce function to lock
regulators and its supplies) introduces function
regulator_lock_supply(). On my kernel it causes compile-time
error:
drivers/regulator/core.c: In function ‘regulator_lock_supply’:
drivers/regulator/core.c:142:6: warning: unused variable ‘i’ [-Wunused-variable]
  int i = 0;

Please pull this fix.

Signed-off-by: Yury Norov <ynorov@...iumnetworks.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 73b7683..2453bce 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -139,7 +139,7 @@ static bool have_full_constraints(void)
 static void regulator_lock_supply(struct regulator_dev *rdev)
 {
 	struct regulator *supply;
-	int i = 0;
+	int __maybe_unused i = 0;
 
 	while (1) {
 		mutex_lock_nested(&rdev->mutex, i++);
-- 
2.5.0