linux-kernel - [PATCH] net: cpsw: add missing of_node_put() in cpsw_probe

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Date:   Thu, 28 Apr 2022 09:45:14 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     <grygorii.strashko@...com>, <davem@...emloft.net>,
        <kuba@...nel.org>
Subject: [PATCH] net: cpsw: add missing of_node_put() in cpsw_probe_dt()

If devm_kcalloc() fails, 'tmp_node' should be put in cpsw_probe_dt().

Fixes: ed3525eda4c4 ("net: ethernet: ti: introduce cpsw switchdev based driver part 1 - dual-emac")
Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
---
 drivers/net/ethernet/ti/cpsw_new.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/cpsw_new.c b/drivers/net/ethernet/ti/cpsw_new.c
index bd4b1528cf99..b81179f7d738 100644
--- a/drivers/net/ethernet/ti/cpsw_new.c
+++ b/drivers/net/ethernet/ti/cpsw_new.c
@@ -1246,8 +1246,10 @@ static int cpsw_probe_dt(struct cpsw_common *cpsw)
 	data->slave_data = devm_kcalloc(dev, CPSW_SLAVE_PORTS_NUM,
 					sizeof(struct cpsw_slave_data),
 					GFP_KERNEL);
-	if (!data->slave_data)
+	if (!data->slave_data) {
+		of_node_put(tmp_node);
 		return -ENOMEM;
+	}
 
 	/* Populate all the child nodes here...
 	 */
-- 
2.25.1