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Commit f32eb9d8 authored by Wen Yang's avatar Wen Yang Committed by David S. Miller
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net: dsa: rtl8366rb: add missing of_node_put after calling of_get_child_by_name 



of_node_put needs to be called when the device node which is got
from of_get_child_by_name finished using.
irq_domain_add_linear() also calls of_node_get() to increase refcount,
so irq_domain will not be affected when it is released.

Fixes: d8652956 ("net: dsa: realtek-smi: Add Realtek SMI driver")
Signed-off-by: default avatarWen Yang <wenyang@linux.alibaba.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d2c50b1c

drivers/net/dsa/rtl8366rb.c

+10 −6
Original line number Diff line number Diff line
@@ -507,7 +507,8 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) 
	irq = of_irq_get(intc, 0);

	if (irq <= 0) {

		dev_err(smi->dev, "failed to get parent IRQ\n");

		return irq ? irq : -EINVAL;

		ret = irq ? irq : -EINVAL;

		goto out_put_node;

	}



	/* This clears the IRQ status register */
@@ -515,7 +516,7 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) 
			  &val);

	if (ret) {

		dev_err(smi->dev, "can't read interrupt status\n");

		return ret;

		goto out_put_node;

	}



	/* Fetch IRQ edge information from the descriptor */
@@ -537,7 +538,7 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) 
				 val);

	if (ret) {

		dev_err(smi->dev, "could not configure IRQ polarity\n");

		return ret;

		goto out_put_node;

	}



	ret = devm_request_threaded_irq(smi->dev, irq, NULL,
@@ -545,7 +546,7 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) 
					"RTL8366RB", smi);

	if (ret) {

		dev_err(smi->dev, "unable to request irq: %d\n", ret);

		return ret;

		goto out_put_node;

	}

	smi->irqdomain = irq_domain_add_linear(intc,

					       RTL8366RB_NUM_INTERRUPT,
@@ -553,12 +554,15 @@ static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi) 
					       smi);

	if (!smi->irqdomain) {

		dev_err(smi->dev, "failed to create IRQ domain\n");

		return -EINVAL;

		ret = -EINVAL;

		goto out_put_node;

	}

	for (i = 0; i < smi->num_ports; i++)

		irq_set_parent(irq_create_mapping(smi->irqdomain, i), irq);



	return 0;

out_put_node:

	of_node_put(intc);

	return ret;

}



static int rtl8366rb_set_addr(struct realtek_smi *smi)