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

A recent patch from Kay Sievers <[e-mail]>
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: Ingo Oeser <[e-mail]>
Cc: Kay Sievers <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

lib/kobject.c

···
 		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);