[PATCH] ALSA: scarlett2: Fix a potential memory leak in scarlett2_init_notify()

[Christophe JAILLET]

If kmalloc() fails, we should release 'mixer->urb'.

Fixes: 9e4d5c1be21f ("ALSA: usb-audio: Scarlett Gen 2 mixer interface")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
 sound/usb/mixer_scarlett_gen2.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c
index 9d11bb08667e..a439c7f64b2e 100644
--- a/sound/usb/mixer_scarlett_gen2.c
+++ b/sound/usb/mixer_scarlett_gen2.c
@@ -4060,8 +4060,10 @@ 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,
-- 
2.34.1