From 96da8f148396329ba769246cb8ceaa35f1ddfc48 Mon Sep 17 00:00:00 2001
From: Qiang Ning <qning0106@126.com>
Date: Thu, 30 Mar 2023 10:43:53 +0800
Subject: [PATCH] mfd: dln2: Fix memory leak in dln2_probe()
Git-commit: 96da8f148396329ba769246cb8ceaa35f1ddfc48
Patch-mainline: v6.4-rc1
References: git-fixes

When dln2_setup_rx_urbs() in dln2_probe() fails, error out_free forgets
to call usb_put_dev() to decrease the refcount of dln2->usb_dev.

Fix this by adding usb_put_dev() in the error handling code of
dln2_probe().

Signed-off-by: Qiang Ning <qning0106@126.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230330024353.4503-1-qning0106@126.com
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/mfd/dln2.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c
index 6cd0b0c752d6..c3149729cec2 100644
--- a/drivers/mfd/dln2.c
+++ b/drivers/mfd/dln2.c
@@ -827,6 +827,7 @@ static int dln2_probe(struct usb_interface *interface,
 	dln2_stop_rx_urbs(dln2);
 
 out_free:
+	usb_put_dev(dln2->usb_dev);
 	dln2_free(dln2);
 
 	return ret;
-- 
2.35.3