Re: [PATCH 2/3] watchdog: ziirave: Use watchdog infrastructure to create sysfs attributes

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On 03/01/16 23:11, Guenter Roeck wrote:
The watchdog core now supports creating driver specific sysfs attributes
when creating the watchdog device.

Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>

Acked-by: Martyn Welch <martyn.welch@xxxxxxxxxxxxxxx>

(Sorry for the delayed response, this email got caught by my spam filtering)

---
  drivers/watchdog/ziirave_wdt.c | 20 +++-----------------
  1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/drivers/watchdog/ziirave_wdt.c b/drivers/watchdog/ziirave_wdt.c
index b498fdcc231a..0c7cb7302cf0 100644
--- a/drivers/watchdog/ziirave_wdt.c
+++ b/drivers/watchdog/ziirave_wdt.c
@@ -207,10 +207,7 @@ static struct attribute *ziirave_wdt_attrs[] = {
  	&dev_attr_reset_reason.attr,
  	NULL
  };
-
-static const struct attribute_group ziirave_wdt_sysfs_files = {
-	.attrs  = ziirave_wdt_attrs,
-};
+ATTRIBUTE_GROUPS(ziirave_wdt);

  static int ziirave_wdt_init_duration(struct i2c_client *client)
  {
@@ -260,6 +257,7 @@ static int ziirave_wdt_probe(struct i2c_client *client,
  	w_priv->wdd.min_timeout = ZIIRAVE_TIMEOUT_MIN;
  	w_priv->wdd.max_timeout = ZIIRAVE_TIMEOUT_MAX;
  	w_priv->wdd.parent = &client->dev;
+	w_priv->wdd.groups = ziirave_wdt_groups;

  	ret = watchdog_init_timeout(&w_priv->wdd, wdt_timeout, &client->dev);
  	if (ret) {
@@ -327,26 +325,14 @@ static int ziirave_wdt_probe(struct i2c_client *client,
  		return -ENODEV;

  	ret = watchdog_register_device(&w_priv->wdd);
-	if (ret)
-		return ret;
-
-	ret = sysfs_create_group(&w_priv->wdd.dev->kobj,
-				 &ziirave_wdt_sysfs_files);
-	if (ret) {
-		watchdog_unregister_device(&w_priv->wdd);

-		return ret;
-	}
-
-	return 0;
+	return ret;
  }

  static int ziirave_wdt_remove(struct i2c_client *client)
  {
  	struct ziirave_wdt_data *w_priv = i2c_get_clientdata(client);

-	sysfs_remove_group(&client->dev.kobj, &ziirave_wdt_sysfs_files);
-
  	watchdog_unregister_device(&w_priv->wdd);

  	return 0;

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