[PATCH -next] PCI: rockchip: Add missing of_node_put() in rockchip_pcie_init_irq_domain()

[PATCH -next] PCI: rockchip: Add missing of_node_put() in rockchip_pcie_init_irq_domain()

[Wei Yongjun]

From: Wei Yongjun <weiyongjun1@huawei.com>

This node pointer is returned by of_get_next_child() with refcount
incremented in this function. of_node_put() on it before exitting
this function on error.

This is detected by Coccinelle semantic patch.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/pci/host/pcie-rockchip.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
index e0b22da..ab88859 100644
--- a/drivers/pci/host/pcie-rockchip.c
+++ b/drivers/pci/host/pcie-rockchip.c
@@ -949,6 +949,7 @@ static int rockchip_pcie_init_irq_domain(struct rockchip_pcie *rockchip)
 						    &intx_domain_ops, rockchip);
 	if (!rockchip->irq_domain) {
 		dev_err(dev, "failed to get a INTx IRQ domain\n");
+		of_node_put(intc);
 		return -EINVAL;
 	}

[PATCH -next] PCI: rockchip: Add missing of_node_put() in rockchip_pcie_init_irq_domain()

[Shawn Lin]

? 2016/10/17 22:57, Wei Yongjun ??:
> From: Wei Yongjun <weiyongjun1@huawei.com>
>
> This node pointer is returned by of_get_next_child() with refcount
> incremented in this function. of_node_put() on it before exitting
> this function on error.
>
> This is detected by Coccinelle semantic patch.

Thanks for fixing this.

Acked-by: Shawn Lin <shawn.lin@rock-chips.com>

>
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> ---
>  drivers/pci/host/pcie-rockchip.c | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
> index e0b22da..ab88859 100644
> --- a/drivers/pci/host/pcie-rockchip.c
> +++ b/drivers/pci/host/pcie-rockchip.c
> @@ -949,6 +949,7 @@ static int rockchip_pcie_init_irq_domain(struct rockchip_pcie *rockchip)
>  						    &intx_domain_ops, rockchip);
>  	if (!rockchip->irq_domain) {
>  		dev_err(dev, "failed to get a INTx IRQ domain\n");
> +		of_node_put(intc);
>  		return -EINVAL;
>  	}
>
> --
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> the body of a message to majordomo at vger.kernel.org
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>


-- 
Best Regards
Shawn Lin

[PATCH -next] PCI: rockchip: Add missing of_node_put() in rockchip_pcie_init_irq_domain()

[Bjorn Helgaas]

On Mon, Oct 17, 2016 at 02:57:22PM +0000, Wei Yongjun wrote:
> From: Wei Yongjun <weiyongjun1@huawei.com>
> 
> This node pointer is returned by of_get_next_child() with refcount
> incremented in this function. of_node_put() on it before exitting
> this function on error.
> 
> This is detected by Coccinelle semantic patch.
> 
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>

Applied with Shawn's ack to pci/host-rockchip for v4.10, thanks!

> ---
>  drivers/pci/host/pcie-rockchip.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
> index e0b22da..ab88859 100644
> --- a/drivers/pci/host/pcie-rockchip.c
> +++ b/drivers/pci/host/pcie-rockchip.c
> @@ -949,6 +949,7 @@ static int rockchip_pcie_init_irq_domain(struct rockchip_pcie *rockchip)
>  						    &intx_domain_ops, rockchip);
>  	if (!rockchip->irq_domain) {
>  		dev_err(dev, "failed to get a INTx IRQ domain\n");
> +		of_node_put(intc);
>  		return -EINVAL;
>  	}
> 
> --
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