kobject: Replace ALL occurrences of '/' with '!' instead of only the first one.

A recent patch from Kay Sievers <kay.sievers@vrfy.org>
replaced the first occurrence of '/' with '!' as needed for block devices.

Now do some cheap defensive coding and replace all of them to avoid future
issues in this area.
Signed-off-by: NIngo Oeser <ioe-lkml@rameria.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

lib/kobject.c

@@ -223,8 +223,7 @@ static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
 		return -ENOMEM;
 
 	/* ewww... some of these buggers have '/' in the name ... */
-	s = strchr(kobj->name, '/');
-	if (s)
+	while ((s = strchr(kobj->name, '/')))
 		s[0] = '!';
 
 	kfree(old_name);