Re: [PATCH] phy: hisilicon: Fix OF node reference leak

[Andy Shevchenko]

On Mon, Feb 16, 2026 at 10:43:48AM +0200, Vladimir Oltean wrote:
> On Wed, Nov 12, 2025 at 02:22:46PM +0800, Haotian Zhang wrote:

...

>  	pcie_dev = bus_find_device_by_of_node(&platform_bus_type, pcie_port);
> +	of_node_put(pcie_port);
>  	if (!pcie_dev) {
>  		dev_err(dev, "Didn't find pcie device\n");
>  		return -ENODEV;
>  	}
> 
> Note that there exists a second reference leak bug in the same function.
> bus_find_device_by_of_node() requires put_device(pcie_dev)

Note, there is a pci_* wrapper for that.

> after it is no longer needed.

Is it only a local variable? If so, it's probably okay to put it, but that
action needs more investigations of the how the pcie_dev is being used.
Also, it might be (but I don't think it is) a (double) put_device() call
somewhere else. TL;DR: the summary of this investigation should be present
in the commit message.

-- 
With Best Regards,
Andy Shevchenko