From 9d4f20a476ca57e4c9246eb1fa2a61bea2354720 Mon Sep 17 00:00:00 2001 From: Yang Yingliang Date: Mon, 17 Oct 2022 11:51:55 +0800 Subject: [PATCH 2/3] net: ethernet: mtk_eth_wed: add missing put_device() in mtk_wed_add_hw() After calling get_device() in mtk_wed_add_hw(), in error path, put_device() needs be called. Fixes: 804775dfc288 ("net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)") Signed-off-by: Yang Yingliang Signed-off-by: David S. Miller --- drivers/net/ethernet/mediatek/mtk_wed.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) --- a/drivers/net/ethernet/mediatek/mtk_wed.c +++ b/drivers/net/ethernet/mediatek/mtk_wed.c @@ -1084,11 +1084,11 @@ void mtk_wed_add_hw(struct device_node * get_device(&pdev->dev); irq = platform_get_irq(pdev, 0); if (irq < 0) - return; + goto err_put_device; regs = syscon_regmap_lookup_by_phandle(np, NULL); if (IS_ERR(regs)) - return; + goto err_put_device; rcu_assign_pointer(mtk_soc_wed_ops, &wed_ops); @@ -1131,8 +1131,14 @@ void mtk_wed_add_hw(struct device_node * hw_list[index] = hw; + mutex_unlock(&hw_lock); + + return; + unlock: mutex_unlock(&hw_lock); +err_put_device: + put_device(&pdev->dev); } void mtk_wed_exit(void)