From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Wed, 17 Jul 2013 21:20:33 +0000 (+0400)
Subject: can: usb_8dev: fix urb leak on failure path in usb_8dev_start()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7671986839f9207f8d76e8ef92b2d3f263a794cc;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

can: usb_8dev: fix urb leak on failure path in usb_8dev_start()

If usb_8dev_start() fails to submit urb,
it unanchors the urb but forgets to free it.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---

diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c
index cbd388eea682..8becd3d838b5 100644
--- a/drivers/net/can/usb/usb_8dev.c
+++ b/drivers/net/can/usb/usb_8dev.c
@@ -779,6 +779,7 @@ static int usb_8dev_start(struct usb_8dev_priv *priv)
 			usb_unanchor_urb(urb);
 			usb_free_coherent(priv->udev, RX_BUFFER_SIZE, buf,
 					  urb->transfer_dma);
+			usb_free_urb(urb);
 			break;
 		}