kobject: replace '/' with '!' in name

Some (block) devices have a '/' in the name, and need special
handling. Let's have that rule to the core, so we can remove it
from the block class.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/lib/kobject.c b/lib/kobject.c
index dcade05..7444015 100644 (file)
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -216,13 +216,19 @@ static int kobject_add_internal(struct kobject *kobj)
 static int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
                                  va_list vargs)
 {
-       /* Free the old name, if necessary. */
-       kfree(kobj->name);
+       const char *old_name = kobj->name;
+       char *s;
 
        kobj->name = kvasprintf(GFP_KERNEL, fmt, vargs);
        if (!kobj->name)
                return -ENOMEM;
 
+       /* ewww... some of these buggers have '/' in the name ... */
+       s = strchr(kobj->name, '/');
+       if (s)
+               s[0] = '!';
+
+       kfree(old_name);
        return 0;
 }