Re: [PATCH v3 2/3] PCI/sysfs: Use runtime PM class macro for auto-cleanup

[Bjorn Helgaas]

On Mon, Sep 22, 2025 at 05:31:53PM +0200, Rafael J. Wysocki wrote:
> From: Takashi Iwai <tiwai@xxxxxxx>
> 
> Use the newly introduced class macro to simplify the code.
> 
> Also, add the proper error handling for the PM runtime get errors.
> 
> Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
> Link: https://patch.msgid.link/20250919163147.4743-3-tiwai@xxxxxxx
> [ rjw: Adjusted the subject and the name of the class ]
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>

> ---
> 
> v2 -> v3: No changes
> 
> v1 -> v2:
>    * Adjust the name of the class to handle the disabled runtime PM case
>      transparently (like the original code).
> 
> ---
>  drivers/pci/pci-sysfs.c |    5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> --- a/drivers/pci/pci-sysfs.c
> +++ b/drivers/pci/pci-sysfs.c
> @@ -1475,8 +1475,9 @@ static ssize_t reset_method_store(struct
>  		return count;
>  	}
>  
> -	pm_runtime_get_sync(dev);
> -	struct device *pmdev __free(pm_runtime_put) = dev;
> +	CLASS(pm_runtime_get_active, pmdev)(dev);
> +	if (IS_ERR(pmdev))
> +		return -ENXIO;
>  
>  	if (sysfs_streq(buf, "default")) {
>  		pci_init_reset_methods(pdev);
> 
> 
>