kobject: catch kobjects that are not initialized

Add warnings to kobject_put() to catch kobjects that are cleaned up but
were never initialized to begin with.

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

1 files changed, 8 insertions, 1 deletions

diff --git a/lib/kobject.c b/lib/kobject.c
index 0d03252f87a8..60ae9e817663 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -592,8 +592,15 @@ static void kobject_release(struct kref *kref)
  */
 void kobject_put(struct kobject *kobj)
 {
-        if (kobj)
+        if (kobj) {
+                if (!kobj->state_initialized) {
+                        printk(KERN_WARNING "kobject: '%s' (%p): is not "
+                               "initialized, yet kobject_put() is being "
+                               "called.\n", kobject_name(kobj), kobj);
+                        WARN_ON(1);
+                }
                 kref_put(&kobj->kref, kobject_release);
+        }
 }
 
 static void dynamic_kobj_release(struct kobject *kobj)