linux-kernel - Re: [PATCH v1] PCI/pwrctrl: Propagate dev_err

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Message-ID: <j25yrjd2ximum4lxltlbfkwuv2bbpufkqeaqro36ptpptcwle6@ebjpicjf5ffb>
Date: Fri, 31 Oct 2025 13:58:48 +0530
From: Manivannan Sadhasivam <mani@...nel.org>
To: Anand Moon <linux.amoon@...il.com>
Cc: Bartosz Golaszewski <brgl@...ev.pl>, 
	Bjorn Helgaas <bhelgaas@...gle.com>, "open list:PCI POWER CONTROL" <linux-pci@...r.kernel.org>, 
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1] PCI/pwrctrl: Propagate dev_err_probe return value

On Sat, Oct 18, 2025 at 12:32:18PM +0530, Anand Moon wrote:
> Ensure that the return value from dev_err_probe() is consistently assigned
> back to return in all error paths within pci_pwrctrl_slot_probe()
> function. This ensures the original error code are propagation for
> debugging.
> 
> Signed-off-by: Anand Moon <linux.amoon@...il.com>
> ---
>  drivers/pci/pwrctrl/slot.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/pci/pwrctrl/slot.c b/drivers/pci/pwrctrl/slot.c
> index 3320494b62d89..36a6282fd222d 100644
> --- a/drivers/pci/pwrctrl/slot.c
> +++ b/drivers/pci/pwrctrl/slot.c
> @@ -41,14 +41,13 @@ static int pci_pwrctrl_slot_probe(struct platform_device *pdev)
>  	ret = of_regulator_bulk_get_all(dev, dev_of_node(dev),
>  					&slot->supplies);
>  	if (ret < 0) {
> -		dev_err_probe(dev, ret, "Failed to get slot regulators\n");
> -		return ret;
> +		return dev_err_probe(dev, ret, "Failed to get slot regulators\n");
>  	}
>  
>  	slot->num_supplies = ret;
>  	ret = regulator_bulk_enable(slot->num_supplies, slot->supplies);
>  	if (ret < 0) {
> -		dev_err_probe(dev, ret, "Failed to enable slot regulators\n");
> +		ret = dev_err_probe(dev, ret, "Failed to enable slot regulators\n");

Again a pointless change.

- Mani

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