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List: linux-can
Subject: [net 5/5] can: kvaser_pciefd: kvaser_pciefd_open(): fix error handling
From: Marc Kleine-Budde <mkl () pengutronix ! de>
Date: 2020-11-30 12:53:07
Message-ID: 20201130125307.218258-6-mkl () pengutronix ! de
[Download RAW message or body]
From: Zhang Qilong <zhangqilong3@huawei.com>
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 <zhangqilong3@huawei.com>
Link: https://lore.kernel.org/r/20201128133922.3276973-3-zhangqilong3@huawei.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
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 72acd1ba162d..43151dd6cb1c 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;
}
--
2.29.2
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