# \[PATCH\] can: dev: add missing of\_node\_put after calling of\_get\_child\_by\_name

- From: Wen Yang \<hidden\>
- Date: 2019-09-28 14:31:05 
- List: netdev
- Page: https://ratatoskr.run/netdev/2019/09/5728659
- Thread: https://ratatoskr.run/linux-can/2019/09/5728659/t.md

```text
of_node_put needs to be called when the device node which is got
from of_get_child_by_name finished using.

fixes: 2290aefa2e90 ("can: dev: Add support for limiting configured bitrate")
Signed-off-by: Wen Yang <redacted>
Cc: Wolfgang Grandegger <redacted>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Franklin S Cooper Jr <redacted>
Cc: <redacted>
Cc: <redacted>
Cc: <redacted>
---
 drivers/net/can/dev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index ac86be5..1c88c36 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -848,6 +848,7 @@ void of_can_transceiver(struct net_device *dev)
 		return;
 
 	ret = of_property_read_u32(dn, "max-bitrate", &priv->bitrate_max);
+	of_node_put(dn);
 	if ((ret && ret != -EINVAL) || (!ret && !priv->bitrate_max))
 		netdev_warn(dev, "Invalid value for transceiver max bitrate. Ignoring bitrate limit.\n");
 }
-- 
1.8.3.1

```