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authorMiaoqian Lin <linmq006@gmail.com>2022-05-26 12:52:08 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-06-14 18:44:54 +0200
commit2e44f21c384503562713b7d3b673c40bed20af3d (patch)
tree83e6d1d46c2a42a04845ab11b21b1f45186cf95c
parent0b238f75b65ed4462ef4cdfa718cac0ac7fce3b8 (diff)
net: ethernet: ti: am65-cpsw-nuss: Fix some refcount leaks
[ Upstream commit 5dd89d2fc438457811cbbec07999ce0d80051ff5 ] of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. am65_cpsw_init_cpts() and am65_cpsw_nuss_probe() don't release the refcount in error case. Add missing of_node_put() to avoid refcount leak. Fixes: b1f66a5bee07 ("net: ethernet: ti: am65-cpsw-nuss: enable packet timestamping support") Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/net/ethernet/ti/am65-cpsw-nuss.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index 98969070ed4b2..6d978dbf708f2 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -1797,6 +1797,7 @@ static int am65_cpsw_init_cpts(struct am65_cpsw_common *common)
if (IS_ERR(cpts)) {
int ret = PTR_ERR(cpts);
+ of_node_put(node);
if (ret == -EOPNOTSUPP) {
dev_info(dev, "cpts disabled\n");
return 0;
@@ -2673,9 +2674,9 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
if (!node)
return -ENOENT;
common->port_num = of_get_child_count(node);
+ of_node_put(node);
if (common->port_num < 1 || common->port_num > AM65_CPSW_MAX_PORTS)
return -ENOENT;
- of_node_put(node);
common->rx_flow_id_base = -1;
init_completion(&common->tdown_complete);