extcon: Fix the checkpatch warning

This patch fixes the checkpatch warning about coding style.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

7 files changed, 10 insertions, 20 deletions

diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
index c1bf0cf747b0..3823aa4a3a80 100644
--- a/drivers/extcon/extcon-max14577.c
+++ b/drivers/extcon/extcon-max14577.c
@@ -539,8 +539,6 @@ static void max14577_muic_irq_work(struct work_struct *work)
                 dev_err(info->dev, "failed to handle MUIC interrupt\n");
 
         mutex_unlock(&info->mutex);
-
-        return;
 }
 
 /*
@@ -730,8 +728,7 @@ static int max14577_muic_probe(struct platform_device *pdev)
                                 muic_irq->name, info);
                 if (ret) {
                         dev_err(&pdev->dev,
-                                "failed: irq request (IRQ: %d,"
-                                " error :%d)\n",
+                                "failed: irq request (IRQ: %d, error :%d)\n",
                                 muic_irq->irq, ret);
                         return ret;
                 }
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index dfcc5cba25f0..a66bec8f6252 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -1019,8 +1019,6 @@ static void max77693_muic_irq_work(struct work_struct *work)
                 dev_err(info->dev, "failed to handle MUIC interrupt\n");
 
         mutex_unlock(&info->mutex);
-
-        return;
 }
 
 static irqreturn_t max77693_muic_irq_handler(int irq, void *data)
@@ -1171,8 +1169,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
                                 muic_irq->name, info);
                 if (ret) {
                         dev_err(&pdev->dev,
-                                "failed: irq request (IRQ: %d,"
-                                " error :%d)\n",
+                                "failed: irq request (IRQ: %d, error :%d)\n",
                                 muic_irq->irq, ret);
                         return ret;
                 }
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index fc1678fa95c4..5774e56c6422 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -579,8 +579,6 @@ static void max8997_muic_irq_work(struct work_struct *work)
                 dev_err(info->dev, "failed to handle MUIC interrupt\n");
 
         mutex_unlock(&info->mutex);
-
-        return;
 }
 
 static irqreturn_t max8997_muic_irq_handler(int irq, void *data)
@@ -689,8 +687,7 @@ static int max8997_muic_probe(struct platform_device *pdev)
                                 muic_irq->name, info);
                 if (ret) {
                         dev_err(&pdev->dev,
-                                "failed: irq request (IRQ: %d,"
-                                " error :%d)\n",
+                                "failed: irq request (IRQ: %d, error :%d)\n",
                                 muic_irq->irq, ret);
                         goto err_irq;
                 }
diff --git a/drivers/extcon/extcon-rt8973a.c b/drivers/extcon/extcon-rt8973a.c
index a784b2d5ee72..9ccd5af89d1c 100644
--- a/drivers/extcon/extcon-rt8973a.c
+++ b/drivers/extcon/extcon-rt8973a.c
@@ -582,10 +582,8 @@ static int rt8973a_muic_i2c_probe(struct i2c_client *i2c,
                 return -EINVAL;
 
         info = devm_kzalloc(&i2c->dev, sizeof(*info), GFP_KERNEL);
-        if (!info) {
-                dev_err(&i2c->dev, "failed to allocate memory\n");
+        if (!info)
                 return -ENOMEM;
-        }
         i2c_set_clientdata(i2c, info);
 
         info->dev = &i2c->dev;
@@ -681,7 +679,7 @@ static int rt8973a_muic_i2c_remove(struct i2c_client *i2c)
         return 0;
 }
 
-static struct of_device_id rt8973a_dt_match[] = {
+static const struct of_device_id rt8973a_dt_match[] = {
         { .compatible = "richtek,rt8973a-muic" },
         { },
 };
diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c
index b0f7bd82af90..2f93cf307852 100644
--- a/drivers/extcon/extcon-sm5502.c
+++ b/drivers/extcon/extcon-sm5502.c
@@ -359,8 +359,8 @@ static unsigned int sm5502_muic_get_cable_type(struct sm5502_muic_info *info)
                         break;
                 default:
                         dev_dbg(info->dev,
-                                "cannot identify the cable type: adc(0x%x) "
-                                "dev_type1(0x%x)\n", adc, dev_type1);
+                                "cannot identify the cable type: adc(0x%x)\n",
+                                adc);
                         return -EINVAL;
                 };
                 break;
@@ -659,7 +659,7 @@ static int sm5502_muic_i2c_remove(struct i2c_client *i2c)
         return 0;
 }
 
-static struct of_device_id sm5502_dt_match[] = {
+static const struct of_device_id sm5502_dt_match[] = {
         { .compatible = "siliconmitus,sm5502-muic" },
         { },
 };
diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index 3f0bad3ce8aa..de67fce18984 100644
--- a/drivers/extcon/extcon-usb-gpio.c
+++ b/drivers/extcon/extcon-usb-gpio.c
@@ -214,7 +214,7 @@ static int usb_extcon_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(usb_extcon_pm_ops,
                          usb_extcon_suspend, usb_extcon_resume);
 
-static struct of_device_id usb_extcon_dt_match[] = {
+static const struct of_device_id usb_extcon_dt_match[] = {
         { .compatible = "linux,extcon-usb-gpio", },
         { /* sentinel */ }
 };
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 8319f25b7145..752ce1208428 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -158,6 +158,7 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr,
         /* Optional callback given by the user */
         if (edev->print_name) {
                 int ret = edev->print_name(edev, buf);
+
                 if (ret >= 0)
                         return ret;
         }