of_parse_phandle() will increase the refcount of 'pcs_node', so add of_node_put() before return from a5psw_pcs_get(). Fixes: 888cdb892b61 ("net: dsa: rzn1-a5psw: add Renesas RZ/N1 advanced 5 port switch driver") Reported-by: Hulk Robot <hulkci@xxxxxxxxxx> Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx> --- v2: call of_node_put() after miic_create() --- drivers/net/dsa/rzn1_a5psw.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/dsa/rzn1_a5psw.c b/drivers/net/dsa/rzn1_a5psw.c index 3e910da98ae2..dece613ee881 100644 --- a/drivers/net/dsa/rzn1_a5psw.c +++ b/drivers/net/dsa/rzn1_a5psw.c @@ -917,12 +917,14 @@ static int a5psw_pcs_get(struct a5psw *a5psw) } a5psw->pcs[reg] = pcs; + of_node_put(pcs_node); } of_node_put(ports); return 0; free_pcs: + of_node_put(pcs_node); of_node_put(port); of_node_put(ports); a5psw_pcs_free(a5psw); -- 2.25.1