3.8.13.21 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Marc Kleine-Budde <m...@pengutronix.de>

commit 7e9e148af01ef388efb6e2490805970be4622792 upstream.

If flexcan_chip_start() in flexcan_open() fails, the interrupt is not freed,
this patch adds the missing cleanup.

Signed-off-by: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: Kamal Mostafa <ka...@canonical.com>
---
 drivers/net/can/flexcan.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 663e4df..9771652 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -860,12 +860,14 @@ static int flexcan_open(struct net_device *dev)
        /* start chip and queuing */
        err = flexcan_chip_start(dev);
        if (err)
-               goto out_close;
+               goto out_free_irq;
        napi_enable(&priv->napi);
        netif_start_queue(dev);
 
        return 0;
 
+ out_free_irq:
+       free_irq(dev->irq, dev);
  out_close:
        close_candev(dev);
  out:
-- 
1.8.3.2

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