From 62a840f992f209e144e716ed31718c5ceecbbb58 Mon Sep 17 00:00:00 2001
From: Xiang Xiao <xiaoxiang@xiaomi.com>
Date: Fri, 21 Aug 2020 19:46:39 +0800
Subject: [PATCH] drivers/rwbuffer: Should call rwb_wrflush in rwb_uninitialize

to avoid lose the cached data in the write buffer

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
---
 drivers/rwbuffer.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rwbuffer.c b/drivers/rwbuffer.c
index 45a7aa5b420..106592ab9b4 100644
--- a/drivers/rwbuffer.c
+++ b/drivers/rwbuffer.c
@@ -880,6 +880,7 @@ void rwb_uninitialize(FAR struct rwbuffer_s *rwb)
   if (rwb->wrmaxblocks > 0)
     {
       rwb_wrcanceltimeout(rwb);
+      rwb_wrflush(rwb);
       nxsem_destroy(&rwb->wrsem);
       if (rwb->wrbuffer)
         {