--- x/drivers/dma-buf/sync_debug.c
+++ s/drivers/dma-buf/sync_debug.c
@@ -141,10 +141,11 @@ static void sync_print_sync_file(struct
 static int sync_info_debugfs_show(struct seq_file *s, void *unused)
 {
 	struct list_head *pos;
+	unsigned long flags;
 
 	seq_puts(s, "objs:\n--------------\n");
 
-	spin_lock_irq(&sync_timeline_list_lock);
+	spin_lock_irqsave(&sync_timeline_list_lock, flags);
 	list_for_each(pos, &sync_timeline_list_head) {
 		struct sync_timeline *obj =
 			container_of(pos, struct sync_timeline,
@@ -153,11 +154,11 @@ static int sync_info_debugfs_show(struct
 		sync_print_obj(s, obj);
 		seq_putc(s, '\n');
 	}
-	spin_unlock_irq(&sync_timeline_list_lock);
+	spin_unlock_irqrestore(&sync_timeline_list_lock, flags);
 
 	seq_puts(s, "fences:\n--------------\n");
 
-	spin_lock_irq(&sync_file_list_lock);
+	spin_lock_irqsave(&sync_file_list_lock, flags);
 	list_for_each(pos, &sync_file_list_head) {
 		struct sync_file *sync_file =
 			container_of(pos, struct sync_file, sync_file_list);
@@ -165,7 +166,7 @@ static int sync_info_debugfs_show(struct
 		sync_print_sync_file(s, sync_file);
 		seq_putc(s, '\n');
 	}
-	spin_unlock_irq(&sync_file_list_lock);
+	spin_unlock_irqrestore(&sync_file_list_lock, flags);
 	return 0;
 }