[PATCH] regulator: Remove NULL test before calling regulator_unregister()

[Axel Lin]

It's safe to call regulator_unregister() with NULL, thus remove the NULL test
before regulator_unregister() calls.

Signed-off-by: Axel Lin <axel....@ingics.com>
Cc: Robert Jarzmik <robert.jarz...@free.fr>
Cc: Haojian Zhuang <haojian.zhu...@gmail.com>
Cc: Wolfram Sang <w.s...@pengutronix.de>
Cc: Sangbeom Kim <sbki...@samsung.com>
Cc: Cyril Chemparathy <cy...@ti.com>
---
 drivers/regulator/max1586.c            |    3 +--
 drivers/regulator/max8649.c            |    6 ++----
 drivers/regulator/max8660.c            |    3 +--
 drivers/regulator/s5m8767.c            |    6 ++----
 drivers/regulator/tps6524x-regulator.c |    3 +--
 5 files changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c
index dac0490..54af610 100644
--- a/drivers/regulator/max1586.c
+++ b/drivers/regulator/max1586.c
@@ -232,8 +232,7 @@ static int max1586_pmic_remove(struct i2c_client *client)
        int i;
 
        for (i = 0; i <= MAX1586_V6; i++)
-               if (max1586->rdev[i])
-                       regulator_unregister(max1586->rdev[i]);
+               regulator_unregister(max1586->rdev[i]);
        return 0;
 }
 
diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c
index fdb67ff..db6c9be 100644
--- a/drivers/regulator/max8649.c
+++ b/drivers/regulator/max8649.c
@@ -248,10 +248,8 @@ static int max8649_regulator_remove(struct i2c_client 
*client)
 {
        struct max8649_regulator_info *info = i2c_get_clientdata(client);
 
-       if (info) {
-               if (info->regulator)
-                       regulator_unregister(info->regulator);
-       }
+       if (info)
+               regulator_unregister(info->regulator);
 
        return 0;
 }
diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index 4d7c635..d428ef9 100644
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -426,8 +426,7 @@ static int max8660_remove(struct i2c_client *client)
        int i;
 
        for (i = 0; i < MAX8660_V_END; i++)
-               if (max8660->rdev[i])
-                       regulator_unregister(max8660->rdev[i]);
+               regulator_unregister(max8660->rdev[i]);
        return 0;
 }
 
diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 8e56198..c24448b 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -923,8 +923,7 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
        return 0;
 err:
        for (i = 0; i < s5m8767->num_regulators; i++)
-               if (rdev[i])
-                       regulator_unregister(rdev[i]);
+               regulator_unregister(rdev[i]);
 
        return ret;
 }
@@ -936,8 +935,7 @@ static int s5m8767_pmic_remove(struct platform_device *pdev)
        int i;
 
        for (i = 0; i < s5m8767->num_regulators; i++)
-               if (rdev[i])
-                       regulator_unregister(rdev[i]);
+               regulator_unregister(rdev[i]);
 
        return 0;
 }
diff --git a/drivers/regulator/tps6524x-regulator.c 
b/drivers/regulator/tps6524x-regulator.c
index 18b67d2..1094393 100644
--- a/drivers/regulator/tps6524x-regulator.c
+++ b/drivers/regulator/tps6524x-regulator.c
@@ -585,8 +585,7 @@ static int pmic_remove(struct spi_device *spi)
        if (!hw)
                return 0;
        for (i = 0; i < N_REGULATORS; i++) {
-               if (hw->rdev[i])
-                       regulator_unregister(hw->rdev[i]);
+               regulator_unregister(hw->rdev[i]);
                hw->rdev[i] = NULL;
        }
        spi_set_drvdata(spi, NULL);
-- 
1.7.10.4



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