Re: [PATCH 10/23] gpio: mockup: fix resource leak in error path

[Andy Shevchenko]

On Fri, Sep 04, 2020 at 05:45:34PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
> 
> If the module init function fails after creating the debugs directory,
> it's never removed. Add proper cleanup calls to avoid this resource
> leak.

Does it fix existing bug?

> Signed-off-by: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
> ---
>  drivers/gpio/gpio-mockup.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c
> index 78c97f7b6893..19c092f814fd 100644
> --- a/drivers/gpio/gpio-mockup.c
> +++ b/drivers/gpio/gpio-mockup.c
> @@ -550,6 +550,7 @@ static int __init gpio_mockup_init(void)
>  	err = platform_driver_register(&gpio_mockup_driver);
>  	if (err) {
>  		pr_err("error registering platform driver\n");
> +		debugfs_remove_recursive(gpio_mockup_dbg_dir);
>  		return err;
>  	}
>  
> @@ -580,6 +581,7 @@ static int __init gpio_mockup_init(void)
>  			pr_err("error registering device");
>  			platform_driver_unregister(&gpio_mockup_driver);
>  			gpio_mockup_unregister_pdevs();
> +			debugfs_remove_recursive(gpio_mockup_dbg_dir);
>  			return PTR_ERR(pdev);
>  		}
>  
> -- 
> 2.26.1
> 

-- 
With Best Regards,
Andy Shevchenko