Re: [PATCH 3/4] input: check whether serio dirver registration is completed

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On Wed, Nov 08, 2006 at 09:40:10PM +0900, Akinobu Mita wrote:
> This patch adds a flag to serio driver indicating whether registration is
> complete and check that flag in serio_unregister_driver.

> --- work-fault-inject.orig/include/linux/serio.h
> +++ work-fault-inject/include/linux/serio.h
> @@ -68,6 +68,7 @@ struct serio_driver {
>  	void (*cleanup)(struct serio *);
>
>  	struct device_driver driver;
> +	int registered;

bitfield please.

> --- work-fault-inject.orig/drivers/input/serio/serio.c
> +++ work-fault-inject/drivers/input/serio/serio.c
> @@ -804,6 +804,8 @@ static void serio_add_driver(struct seri
>  		printk(KERN_ERR
>  			"serio: driver_register() failed for %s, error: %d\n",
>  			drv->driver.name, error);
> +	else
> +		drv->registered = 1;
>  }
>
>  int __serio_register_driver(struct serio_driver *drv, struct module *owne
> @@ -830,7 +832,10 @@ start_over:
>  		}
>  	}
>
> -	driver_unregister(&drv->driver);
> +	if (drv->registered) {
> +		driver_unregister(&drv->driver);
> +		drv->registered = 0;
> +	}

-
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