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-rw-r--r--lib/kobject.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/kobject.c b/lib/kobject.c
index 640bd98a4c8..83bd5b36f91 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -531,6 +531,13 @@ struct kobject *kobject_get(struct kobject *kobj)
return kobj;
}
+static struct kobject *kobject_get_unless_zero(struct kobject *kobj)
+{
+ if (!kref_get_unless_zero(&kobj->kref))
+ kobj = NULL;
+ return kobj;
+}
+
/*
* kobject_cleanup - free kobject resources.
* @kobj: object to cleanup
@@ -785,7 +792,7 @@ struct kobject *kset_find_obj_hinted(struct kset *kset, const char *name,
slow_search:
list_for_each_entry(k, &kset->list, entry) {
if (kobject_name(k) && !strcmp(kobject_name(k), name)) {
- ret = kobject_get(k);
+ ret = kobject_get_unless_zero(k);
break;
}
}