[kobject] Add warning + back trace if kobject_get() is called with 0 refcount.

ed35f39b · Patrick Mochel · ace11a78 · ed35f39b
Commit ed35f39b authored Jun 04, 2003 by Patrick Mochel
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lib/kobject.c lib/kobject.c +3 -2

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--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -347,9 +347,10 @@ struct kobject * kobject_get(struct kobject * kobj)
 {
 	struct kobject * ret = kobj;
-	if (kobj)
+	if (kobj) {
+		WARN_ON(!atomic_read(&kobj->refcount));
 		atomic_inc(&kobj->refcount);
-	else
+	} else
 		ret = NULL;
 	return ret;
 }