Received-SPF: pass (google.com: domain of linux-kernel+bounces-184338-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223;
From: Chen Ni <nichen@iscas.ac.cn>
To: g@b4.vu,
	perex@perex.cz,
	tiwai@suse.com
Cc: alsa-devel@alsa-project.org,
	linux-sound@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Chen Ni <nichen@iscas.ac.cn>
Subject: [PATCH] ALSA: scarlett2: Prevent leaking urb
Date: Tue, 21 May 2024 09:03:52 +0800
Message-Id: <20240521010352.1082164-1-nichen@iscas.ac.cn>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

In scarlett2_init_notify() if kmalloc() fails the allocated urb should
be released.

Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
---
 sound/usb/mixer_scarlett2.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c
index 1150cf104985..4cad6b2a0292 100644
--- a/sound/usb/mixer_scarlett2.c
+++ b/sound/usb/mixer_scarlett2.c
@@ -8637,9 +8637,10 @@ static int scarlett2_init_notify(struct usb_mixer_interface *mixer)
 		return -ENOMEM;
 
 	transfer_buffer = kmalloc(private->wMaxPacketSize, GFP_KERNEL);
-	if (!transfer_buffer)
+	if (!transfer_buffer) {
+		usb_free_urb(mixer->urb);
 		return -ENOMEM;
-
+	}
 	usb_fill_int_urb(mixer->urb, dev, pipe,
 			 transfer_buffer, private->wMaxPacketSize,
 			 scarlett2_notify, mixer, private->bInterval);
-- 
2.25.1