diff mbox

[v1,11/15] hwmon: (w83792d) Remove duplicate NULL check

Message ID 20171031142149.32512-11-andriy.shevchenko@linux.intel.com (mailing list archive)
State Rejected
Headers show

Commit Message

Andy Shevchenko Oct. 31, 2017, 2:21 p.m. UTC
Since i2c_unregister_device() became NULL-aware we may remove duplicate
NULL check.

Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: linux-hwmon@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/hwmon/w83792d.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

Comments

Jean Delvare Oct. 31, 2017, 7:32 p.m. UTC | #1
On Tue, 31 Oct 2017 16:21:45 +0200, Andy Shevchenko wrote:
> Since i2c_unregister_device() became NULL-aware we may remove duplicate
> NULL check.
> 
> Cc: Jean Delvare <jdelvare@suse.com>
> Cc: Guenter Roeck <linux@roeck-us.net>
> Cc: linux-hwmon@vger.kernel.org
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
> ---
>  drivers/hwmon/w83792d.c | 15 +++++----------
>  1 file changed, 5 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
> index d764602d70db..76aa39e537e0 100644
> --- a/drivers/hwmon/w83792d.c
> +++ b/drivers/hwmon/w83792d.c
> @@ -981,8 +981,7 @@ w83792d_detect_subclients(struct i2c_client *new_client)
>  /* Undo inits in case of errors */
>  
>  ERROR_SC_1:
> -	if (data->lm75[0] != NULL)
> -		i2c_unregister_device(data->lm75[0]);
> +	i2c_unregister_device(data->lm75[0]);
>  ERROR_SC_0:
>  	return err;
>  }
> @@ -1456,10 +1455,8 @@ w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
>  	for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
>  		sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
>  exit_i2c_unregister:
> -	if (data->lm75[0] != NULL)
> -		i2c_unregister_device(data->lm75[0]);
> -	if (data->lm75[1] != NULL)
> -		i2c_unregister_device(data->lm75[1]);
> +	i2c_unregister_device(data->lm75[0]);
> +	i2c_unregister_device(data->lm75[1]);
>  	return err;
>  }
>  
> @@ -1475,10 +1472,8 @@ w83792d_remove(struct i2c_client *client)
>  		sysfs_remove_group(&client->dev.kobj,
>  				   &w83792d_group_fan[i]);
>  
> -	if (data->lm75[0] != NULL)
> -		i2c_unregister_device(data->lm75[0]);
> -	if (data->lm75[1] != NULL)
> -		i2c_unregister_device(data->lm75[1]);
> +	i2c_unregister_device(data->lm75[0]);
> +	i2c_unregister_device(data->lm75[1]);
>  
>  	return 0;
>  }

Reviewed-by: Jean Delvare <jdelvare@suse.de>
diff mbox

Patch

diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index d764602d70db..76aa39e537e0 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -981,8 +981,7 @@  w83792d_detect_subclients(struct i2c_client *new_client)
 /* Undo inits in case of errors */
 
 ERROR_SC_1:
-	if (data->lm75[0] != NULL)
-		i2c_unregister_device(data->lm75[0]);
+	i2c_unregister_device(data->lm75[0]);
 ERROR_SC_0:
 	return err;
 }
@@ -1456,10 +1455,8 @@  w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
 		sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
 exit_i2c_unregister:
-	if (data->lm75[0] != NULL)
-		i2c_unregister_device(data->lm75[0]);
-	if (data->lm75[1] != NULL)
-		i2c_unregister_device(data->lm75[1]);
+	i2c_unregister_device(data->lm75[0]);
+	i2c_unregister_device(data->lm75[1]);
 	return err;
 }
 
@@ -1475,10 +1472,8 @@  w83792d_remove(struct i2c_client *client)
 		sysfs_remove_group(&client->dev.kobj,
 				   &w83792d_group_fan[i]);
 
-	if (data->lm75[0] != NULL)
-		i2c_unregister_device(data->lm75[0]);
-	if (data->lm75[1] != NULL)
-		i2c_unregister_device(data->lm75[1]);
+	i2c_unregister_device(data->lm75[0]);
+	i2c_unregister_device(data->lm75[1]);
 
 	return 0;
 }