target/linux/generic/backport-5.15/728-v6.1-03-net-ethernet-mtk_eth_wed-add-missing-of_node_put.patch

   1 From e0bb4659e235770e6f53b3692e958591f49448f5 Mon Sep 17 00:00:00 2001
   2 From: Yang Yingliang <yangyingliang@huawei.com>
   3 Date: Mon, 17 Oct 2022 11:51:56 +0800
   4 Subject: [PATCH 3/3] net: ethernet: mtk_eth_wed: add missing of_node_put()
   5
   6 The device_node pointer returned by of_parse_phandle() with refcount
   7 incremented, when finish using it, the refcount need be decreased.
   8
   9 Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)")
  10 Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
  11 Signed-off-by: David S. Miller <davem@davemloft.net>
  12 ---
  13  drivers/net/ethernet/mediatek/mtk_wed.c | 5 ++++-
  14  1 file changed, 4 insertions(+), 1 deletion(-)
  15
  16 --- a/drivers/net/ethernet/mediatek/mtk_wed.c
  17 +++ b/drivers/net/ethernet/mediatek/mtk_wed.c
  18 @@ -1079,7 +1079,7 @@ void mtk_wed_add_hw(struct device_node *
  19
  20         pdev = of_find_device_by_node(np);
  21         if (!pdev)
  22 -               return;
  23 +               goto err_of_node_put;
  24
  25         get_device(&pdev->dev);
  26         irq = platform_get_irq(pdev, 0);
  27 @@ -1139,6 +1139,8 @@ unlock:
  28         mutex_unlock(&hw_lock);
  29  err_put_device:
  30         put_device(&pdev->dev);
  31 +err_of_node_put:
  32 +       of_node_put(np);
  33  }
  34
  35  void mtk_wed_exit(void)
  36 @@ -1159,6 +1161,7 @@ void mtk_wed_exit(void)
  37                 hw_list[i] = NULL;
  38                 debugfs_remove(hw->debugfs_dir);
  39                 put_device(hw->dev);
  40 +               of_node_put(hw->node);
  41                 kfree(hw);
  42         }
  43  }