From e2b00a9fcc85554812ea8e509b3f80397f83a192 Mon Sep 17 00:00:00 2001
From: chao an <anchao@xiaomi.com>
Date: Wed, 7 Dec 2022 18:05:44 +0800
Subject: [PATCH] mm/iob: reserved bytes should be updated after each iteration

Signed-off-by: chao an <anchao@xiaomi.com>
---
 mm/iob/iob_reserve.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/iob/iob_reserve.c b/mm/iob/iob_reserve.c
index 7181c6674b..2f459de3aa 100644
--- a/mm/iob/iob_reserve.c
+++ b/mm/iob/iob_reserve.c
@@ -78,5 +78,6 @@ void iob_reserve(FAR struct iob_s *iob, unsigned int reserved)
 
       iob->io_offset = offset;
       iob = iob->io_flink;
+      reserved -= offset;
     }
 }