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Message-Id: <20220729115302.2258296-1-gregkh@linuxfoundation.org>
Date:   Fri, 29 Jul 2022 13:53:02 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     platform-driver-x86@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Perry Yuan <Perry.Yuan@...l.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>, Dell.Client.Kernel@...l.com,
        linux-kernel@...r.kernel.org
Subject: [PATCH] platform/x86: dell-privacy: convert to use dev_groups

The driver core supports the ability to handle the creation and removal
of device-specific sysfs files in a race-free manner.  Take advantage of
that by converting this driver to use this by moving the sysfs
attributes into a group and assigning the dev_groups pointer to it.

Cc: Perry Yuan <Perry.Yuan@...l.com>
Cc: Hans de Goede <hdegoede@...hat.com>
Cc: Mark Gross <markgross@...nel.org>
Cc: Dell.Client.Kernel@...l.com
Cc: platform-driver-x86@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/platform/x86/dell/dell-wmi-privacy.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/dell/dell-wmi-privacy.c b/drivers/platform/x86/dell/dell-wmi-privacy.c
index 074b7e68c227..c82b3d6867c5 100644
--- a/drivers/platform/x86/dell/dell-wmi-privacy.c
+++ b/drivers/platform/x86/dell/dell-wmi-privacy.c
@@ -174,15 +174,12 @@ static ssize_t dell_privacy_current_state_show(struct device *dev,
 static DEVICE_ATTR_RO(dell_privacy_supported_type);
 static DEVICE_ATTR_RO(dell_privacy_current_state);
 
-static struct attribute *privacy_attributes[] = {
+static struct attribute *privacy_attrs[] = {
 	&dev_attr_dell_privacy_supported_type.attr,
 	&dev_attr_dell_privacy_current_state.attr,
 	NULL,
 };
-
-static const struct attribute_group privacy_attribute_group = {
-	.attrs = privacy_attributes
-};
+ATTRIBUTE_GROUPS(privacy);
 
 /*
  * Describes the Device State class exposed by BIOS which can be consumed by
@@ -342,10 +339,6 @@ static int dell_privacy_wmi_probe(struct wmi_device *wdev, const void *context)
 	if (ret)
 		return ret;
 
-	ret = devm_device_add_group(&wdev->dev, &privacy_attribute_group);
-	if (ret)
-		return ret;
-
 	if (priv->features_present & BIT(DELL_PRIVACY_TYPE_AUDIO)) {
 		ret = dell_privacy_leds_setup(&priv->wdev->dev);
 		if (ret)
@@ -374,6 +367,7 @@ static const struct wmi_device_id dell_wmi_privacy_wmi_id_table[] = {
 static struct wmi_driver dell_privacy_wmi_driver = {
 	.driver = {
 		.name = "dell-privacy",
+		.dev_groups = privacy_groups,
 	},
 	.probe = dell_privacy_wmi_probe,
 	.remove = dell_privacy_wmi_remove,
-- 
2.37.1

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