Re: [RFC/PATCH 4/8] lib/kobject.c: Use strreplace

[Al Viro <viro@ZenIV.linux.org.uk>]

On Thu, Jun 04, 2015 at 11:37:11AM +0200, Rasmus Villemoes wrote:
> There's probably not many slashes in kobj->name, but starting over
> when we see one feels wrong.
> 
> Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
> ---
>  lib/kobject.c | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/lib/kobject.c b/lib/kobject.c
> index 3b841b97fccd..597d962d3d4d 100644
> --- a/lib/kobject.c
> +++ b/lib/kobject.c
> @@ -258,7 +258,6 @@ int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
>  				  va_list vargs)
>  {
>  	const char *old_name = kobj->name;
> -	char *s;
>  
>  	if (kobj->name && !fmt)
>  		return 0;
> @@ -270,8 +269,7 @@ int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
>  	}
>  
>  	/* ewww... some of these buggers have '/' in the name ... */
> -	while ((s = strchr(kobj->name, '/')))
> -		s[0] = '!';
> +	strreplace((char *)kobj->name, '/', '!');

Again, I'd rather do
        s = kvasprintf(GFP_KERNEL, fmt, vargs);
        if (!s)
                return -ENOMEM;
	strreplace(s, '/', '!');
	old_name = kobj->name;
	kobj->name = s;
	kfree(old_name);