[PATCH 1/5] hwmon: (corsair-cpro) Use devres function

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From: Jackie Liu <liuyun01@xxxxxxxxxx>

Use devm_hwmon_device_register_with_info() and remove hwmon_dev
from ccp_device struct as it is not needed anymore.

Signed-off-by: Jackie Liu <liuyun01@xxxxxxxxxx>
---
 drivers/hwmon/corsair-cpro.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/hwmon/corsair-cpro.c b/drivers/hwmon/corsair-cpro.c
index fa6aa4fc8b52..f476367ba6cf 100644
--- a/drivers/hwmon/corsair-cpro.c
+++ b/drivers/hwmon/corsair-cpro.c
@@ -76,7 +76,6 @@
 
 struct ccp_device {
 	struct hid_device *hdev;
-	struct device *hwmon_dev;
 	struct completion wait_input_report;
 	struct mutex mutex; /* whenever buffer is used, lock before send_usb_cmd */
 	u8 *buffer;
@@ -486,6 +485,7 @@ static int get_temp_cnct(struct ccp_device *ccp)
 static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	struct ccp_device *ccp;
+	struct device *hwmon_dev;
 	int ret;
 
 	ccp = devm_kzalloc(&hdev->dev, sizeof(*ccp), GFP_KERNEL);
@@ -523,12 +523,12 @@ static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	ret = get_fan_cnct(ccp);
 	if (ret)
 		goto out_hw_close;
-	ccp->hwmon_dev = hwmon_device_register_with_info(&hdev->dev, "corsaircpro",
-							 ccp, &ccp_chip_info, 0);
-	if (IS_ERR(ccp->hwmon_dev)) {
-		ret = PTR_ERR(ccp->hwmon_dev);
+	hwmon_dev =
+		devm_hwmon_device_register_with_info(&hdev->dev, "corsaircpro",
+						     ccp, &ccp_chip_info, 0);
+	ret = PTR_ERR_OR_ZERO(hwmon_dev);
+	if (ret)
 		goto out_hw_close;
-	}
 
 	return 0;
 
@@ -541,9 +541,6 @@ static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 static void ccp_remove(struct hid_device *hdev)
 {
-	struct ccp_device *ccp = hid_get_drvdata(hdev);
-
-	hwmon_device_unregister(ccp->hwmon_dev);
 	hid_hw_close(hdev);
 	hid_hw_stop(hdev);
 }
-- 
2.25.1




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