This is a note to let you know that I've just added the patch titled
net: ethernet: mtk_eth_wed: add missing put_device() in mtk_wed_add_hw()
to the 6.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-ethernet-mtk_eth_wed-add-missing-put_device-in-m.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1d3080398af9d722669aa46d47ea6d55842b6bcb
Author: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Date: Mon Oct 17 11:51:55 2022 +0800
net: ethernet: mtk_eth_wed: add missing put_device() in mtk_wed_add_hw()
[ Upstream commit 9d4f20a476ca57e4c9246eb1fa2a61bea2354720 ]
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 <yangyingliang@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c
index 29be2fcafea3..fff2b745587e 100644
--- a/drivers/net/ethernet/mediatek/mtk_wed.c
+++ b/drivers/net/ethernet/mediatek/mtk_wed.c
@@ -813,11 +813,11 @@ void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
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);
@@ -853,8 +853,14 @@ void mtk_wed_add_hw(struct device_node *np, struct mtk_eth *eth,
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)
