From 362c571b92e2fa734c1f2c1e303d1dc27f12ec95 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Mon, 12 Aug 2019 18:27:40 +0200
Subject: [PATCH] HID: wacom: do not call hid_set_drvdata(hdev, NULL)
Git-commit: 362c571b92e2fa734c1f2c1e303d1dc27f12ec95
Patch-mainline: v5.4-rc1
References: git-fixes

This is a common pattern in the HID drivers to reset the drvdata.
However, this is actually already handled by driver core, so there
is no need to do it manually.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Jason Gerecke <jason.gerecke@wacom.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/hid/wacom_sys.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index 602219a8710d..5ded94b7bf68 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -2719,14 +2719,12 @@ static int wacom_probe(struct hid_device *hdev,
 	wacom_wac->features = *((struct wacom_features *)id->driver_data);
 	features = &wacom_wac->features;
 
-	if (features->check_for_hid_type && features->hid_type != hdev->type) {
-		error = -ENODEV;
-		goto fail;
-	}
+	if (features->check_for_hid_type && features->hid_type != hdev->type)
+		return -ENODEV;
 
 	error = kfifo_alloc(&wacom_wac->pen_fifo, WACOM_PKGLEN_MAX, GFP_KERNEL);
 	if (error)
-		goto fail;
+		return error;
 
 	wacom_wac->hid_data.inputmode = -1;
 	wacom_wac->mode_report = -1;
@@ -2744,12 +2742,12 @@ static int wacom_probe(struct hid_device *hdev,
 	error = hid_parse(hdev);
 	if (error) {
 		hid_err(hdev, "parse failed\n");
-		goto fail;
+		return error;
 	}
 
 	error = wacom_parse_and_register(wacom, false);
 	if (error)
-		goto fail;
+		return error;
 
 	if (hdev->bus == BUS_BLUETOOTH) {
 		error = device_create_file(&hdev->dev, &dev_attr_speed);
@@ -2760,10 +2758,6 @@ static int wacom_probe(struct hid_device *hdev,
 	}
 
 	return 0;
-
-fail:
-	hid_set_drvdata(hdev, NULL);
-	return error;
 }
 
 static void wacom_remove(struct hid_device *hdev)
@@ -2792,8 +2786,6 @@ static void wacom_remove(struct hid_device *hdev)
 		wacom_release_resources(wacom);
 
 	kfifo_free(&wacom_wac->pen_fifo);
-
-	hid_set_drvdata(hdev, NULL);
 }
 
 #ifdef CONFIG_PM
-- 
2.26.2