xhci: Fix front USB ports on ASUS PRIME B350M-A

[pandora-kernel.git] / drivers / md / dm.c

diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index ca688a2..d7e6399 100644 (file)
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -2685,11 +2685,15 @@ struct mapped_device *dm_get_from_kobject(struct kobject *kobj)
 
        md = container_of(kobj, struct mapped_device, kobj_holder.kobj);
 
-       if (test_bit(DMF_FREEING, &md->flags) ||
-           dm_deleting_md(md))
-               return NULL;
-
+       spin_lock(&_minor_lock);
+       if (test_bit(DMF_FREEING, &md->flags) || dm_deleting_md(md)) {
+               md = NULL;
+               goto out;
+       }
        dm_get(md);
+out:
+       spin_unlock(&_minor_lock);
+
        return md;
 }