From 976a54d0f4202cb412a3b1fc7f117e1d97db35f3 Mon Sep 17 00:00:00 2001
From: Hanno Zulla <kontakt@hanno.de>
Date: Tue, 18 Feb 2020 12:38:34 +0100
Subject: [PATCH] HID: hid-bigbenff: call hid_hw_stop() in case of error
Git-commit: 976a54d0f4202cb412a3b1fc7f117e1d97db35f3
Patch-mainline: v5.6-rc4
References: git-fixes

It's required to call hid_hw_stop() once hid_hw_start() was called
previously, so error cases need to handle this. Also, hid_hw_close() is
not necessary during removal.

Signed-off-by: Hanno Zulla <kontakt@hanno.de>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/hid/hid-bigbenff.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/hid/hid-bigbenff.c b/drivers/hid/hid-bigbenff.c
index f7e85bacb688..f8c552b64a89 100644
--- a/drivers/hid/hid-bigbenff.c
+++ b/drivers/hid/hid-bigbenff.c
@@ -305,7 +305,6 @@ static void bigben_remove(struct hid_device *hid)
 	struct bigben_device *bigben = hid_get_drvdata(hid);
 
 	cancel_work_sync(&bigben->worker);
-	hid_hw_close(hid);
 	hid_hw_stop(hid);
 }
 
@@ -350,7 +349,7 @@ static int bigben_probe(struct hid_device *hid,
 	error = input_ff_create_memless(hidinput->input, NULL,
 		hid_bigben_play_effect);
 	if (error)
-		return error;
+		goto error_hw_stop;
 
 	name_sz = strlen(dev_name(&hid->dev)) + strlen(":red:bigben#") + 1;
 
@@ -360,8 +359,10 @@ static int bigben_probe(struct hid_device *hid,
 			sizeof(struct led_classdev) + name_sz,
 			GFP_KERNEL
 		);
-		if (!led)
-			return -ENOMEM;
+		if (!led) {
+			error = -ENOMEM;
+			goto error_hw_stop;
+		}
 		name = (void *)(&led[1]);
 		snprintf(name, name_sz,
 			"%s:red:bigben%d",
@@ -375,7 +376,7 @@ static int bigben_probe(struct hid_device *hid,
 		bigben->leds[n] = led;
 		error = devm_led_classdev_register(&hid->dev, led);
 		if (error)
-			return error;
+			goto error_hw_stop;
 	}
 
 	/* initial state: LED1 is on, no rumble effect */
@@ -389,6 +390,10 @@ static int bigben_probe(struct hid_device *hid,
 	hid_info(hid, "LED and force feedback support for BigBen gamepad\n");
 
 	return 0;
+
+error_hw_stop:
+	hid_hw_stop(hid);
+	return error;
 }
 
 static __u8 *bigben_report_fixup(struct hid_device *hid, __u8 *rdesc,
-- 
2.16.4