Re: [PATCH v4 07/10] gpio: mxc: switch probe error paths to dev_err_probe()

[Frank Li]

On Wed, Oct 07, 2026 at 06:44:22PM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@xxxxxxx>

subject: add dev_err_probe() for error paths.

>
> Replace bare return statements with dev_err_probe() across all probe
> error paths for consistent diagnostics and deferred-probe support.

return err, suppose already support deferred-probe.

Add error just help diagnostics.

Frank

>
> Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> ---
>  drivers/gpio/gpio-mxc.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
> index 54b09f1a4b50..f5f9ef1564cd 100644
> --- a/drivers/gpio/gpio-mxc.c
> +++ b/drivers/gpio/gpio-mxc.c
> @@ -517,7 +517,7 @@ static int mxc_gpio_probe(struct platform_device *pdev)
>
>  	err = gpio_generic_chip_init(&port->gen_gc, &config);
>  	if (err)
> -		return err;
> +		return dev_err_probe(&pdev->dev, err, "Failed to init gpio chip\n");
>
>  	port->gen_gc.gc.request = mxc_gpio_request;
>  	port->gen_gc.gc.free = mxc_gpio_free;
> @@ -533,11 +533,11 @@ static int mxc_gpio_probe(struct platform_device *pdev)
>
>  	err = devm_gpiochip_add_data(&pdev->dev, &port->gen_gc.gc, port);
>  	if (err)
> -		return err;
> +		return dev_err_probe(&pdev->dev, err, "Failed to add gpiochip data\n");
>
>  	irq_base = devm_irq_alloc_descs(&pdev->dev, -1, 0, 32, numa_node_id());
>  	if (irq_base < 0)
> -		return irq_base;
> +		return dev_err_probe(&pdev->dev, irq_base, "Failed to alloc irq desc\n");
>
>  	d_info = (struct irq_domain_info) {
>  		.fwnode		= dev_fwnode(&pdev->dev),
> @@ -550,14 +550,15 @@ static int mxc_gpio_probe(struct platform_device *pdev)
>
>  	port->domain = devm_irq_domain_instantiate(&pdev->dev, &d_info);
>  	if (IS_ERR(port->domain))
> -		return PTR_ERR(port->domain);
> +		return dev_err_probe(&pdev->dev, PTR_ERR(port->domain),
> +				     "Failed to create irq domain\n");
>
>  	irq_domain_set_pm_device(port->domain, &pdev->dev);
>
>  	/* gpio-mxc can be a generic irq chip */
>  	err = mxc_gpio_init_gc(port, irq_base);
>  	if (err < 0)
> -		return err;
> +		return dev_err_probe(&pdev->dev, err, "Failed to init generic irq chip\n");
>
>  	list_add_tail(&port->node, &mxc_gpio_ports);
>
>
> --
> 2.51.0
>
>