From 48f53e9150a96ca27e3b33264c36c4431caf8af9 Mon Sep 17 00:00:00 2001
From: xiao-mang <53597406+xiao-mang@users.noreply.github.com>
Date: Fri, 10 Nov 2023 17:50:20 +0800
Subject: [PATCH] add blockdev's flush fops for opening file with O_SYNC
 (#8232)

---
 components/drivers/sdio/block_dev.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/components/drivers/sdio/block_dev.c b/components/drivers/sdio/block_dev.c
index 5bbdbb6696..fcef99f170 100644
--- a/components/drivers/sdio/block_dev.c
+++ b/components/drivers/sdio/block_dev.c
@@ -614,6 +614,11 @@ static int rt_mmcsd_fops_poll(struct dfs_file *file, struct rt_pollreq *req)
     return mask;
 }
 
+static int rt_mmcsd_fops_flush(struct dfs_file *file)
+{
+    return RT_EOK;
+}
+
 const static struct dfs_file_ops mmcsd_blk_fops =
 {
     rt_mmcsd_fops_open,
@@ -621,7 +626,7 @@ const static struct dfs_file_ops mmcsd_blk_fops =
     rt_mmcsd_fops_ioctl,
     rt_mmcsd_fops_read,
     rt_mmcsd_fops_write,
-    RT_NULL,
+    rt_mmcsd_fops_flush,
     generic_dfs_lseek,
     RT_NULL,
     RT_NULL,