[PATCH 2/2] can: kvaser_pciefd: Fix error handling in kvaser_pciefd_open

[Zhang Qilong]

If kvaser_pciefd_bus_on failed, we should call close_candev
to avoid reference leak.

Fixes: 26ad340e582d3 ("can: kvaser_pciefd: Add driver for Kvaser PCIEcan 
devices")
Signed-off-by: Zhang Qilong <zhangqilo...@huawei.com>
---
 drivers/net/can/kvaser_pciefd.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c
index 1bafa614950e..969cedb9b0b6 100644
--- a/drivers/net/can/kvaser_pciefd.c
+++ b/drivers/net/can/kvaser_pciefd.c
@@ -692,8 +692,10 @@ static int kvaser_pciefd_open(struct net_device *netdev)
                return err;
 
        err = kvaser_pciefd_bus_on(can);
-       if (err)
+       if (err) {
+               close_candev(netdev);
                return err;
+       }
 
        return 0;
 }
-- 
2.25.4