[PATCH 4.4 21/43] can: gs_usb: gs_can_open(): prevent memory leak

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From: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>

commit fb5be6a7b4863ecc44963bb80ca614584b6c7817 upstream.

In gs_can_open() if usb_submit_urb() fails the allocated urb should be
released.

Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Cc: linux-stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 drivers/net/can/usb/gs_usb.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -617,6 +617,7 @@ static int gs_can_open(struct net_device
 					   rc);
 
 				usb_unanchor_urb(urb);
+				usb_free_urb(urb);
 				break;
 			}
 





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