diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 969d72785288a3db54b57920e1a382f72d483e0d..9551ab541f0369967883fdd185e081a91f5c2b3a 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -395,12 +395,14 @@ int core_update_device_list_for_node(
 				printk(KERN_ERR "struct se_dev_entry->se_lun_acl"
 					" already set for demo mode -> explict"
 					" LUN ACL transition\n");
+				spin_unlock_irq(&nacl->device_list_lock);
 				return -1;
 			}
 			if (deve->se_lun != lun) {
 				printk(KERN_ERR "struct se_dev_entry->se_lun does"
 					" match passed struct se_lun for demo mode"
 					" -> explict LUN ACL transition\n");
+				spin_unlock_irq(&nacl->device_list_lock);
 				return -1;
 			}
 			deve->se_lun_acl = lun_acl;