From 562af123d5eb080772f3c0273708a11472bc5ad5 Mon Sep 17 00:00:00 2001
From: Anatol Belski <anbelski@linux.microsoft.com>
Date: Mon, 8 Dec 2025 20:01:32 +0100
Subject: [PATCH] block: qcow: Add missing flush in write_refcount_block

The BufWriter must be flushed explicitly to handle errors
properly. Without explicit flush, errors during the implicit
drop flush are ignored.

This is the same issue fixed for write_pointer_table
in commit 85556951a.

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
---
 block/src/qcow/qcow_raw_file.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/src/qcow/qcow_raw_file.rs b/block/src/qcow/qcow_raw_file.rs
index 1d9dbc0b5..18a1c771e 100644
--- a/block/src/qcow/qcow_raw_file.rs
+++ b/block/src/qcow/qcow_raw_file.rs
@@ -102,6 +102,7 @@ impl QcowRawFile {
         for count in table {
             buffer.write_u16::<BigEndian>(*count)?;
         }
+        buffer.flush()?;
         Ok(())
     }