[PATCH] regulator: core: Initialize regulator_no to -1

[Aniroop Mathur]

From: Aniroop Mathur <a.mat...@samsung.com>

This patch initializes regulator_no to -1 to avoid extra subtraction
operation performed every time we register a regulator.

Signed-off-by: Aniroop Mathur <a.mat...@samsung.com>
---
 drivers/regulator/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a3c3785..4da1d98 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3481,7 +3481,7 @@ regulator_register(const struct regulator_desc 
*regulator_desc,
 {
        const struct regulation_constraints *constraints = NULL;
        const struct regulator_init_data *init_data;
-       static atomic_t regulator_no = ATOMIC_INIT(0);
+       static atomic_t regulator_no = ATOMIC_INIT(-1);
        struct regulator_dev *rdev;
        struct device *dev;
        int ret, i;
@@ -3551,7 +3551,7 @@ regulator_register(const struct regulator_desc 
*regulator_desc,
        rdev->dev.of_node = of_node_get(config->of_node);
        rdev->dev.parent = dev;
        dev_set_name(&rdev->dev, "regulator.%d",
-                    atomic_inc_return(&regulator_no) - 1);
+                    atomic_inc_return(&regulator_no));
        ret = device_register(&rdev->dev);
        if (ret != 0) {
                put_device(&rdev->dev);
-- 
1.9.1

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