From 5a51d3b23fe08190060991432c82f498a67fa637 Mon Sep 17 00:00:00 2001
From: wangjianyu3 <wangjianyu3@xiaomi.com>
Date: Wed, 11 Dec 2024 22:09:42 +0800
Subject: [PATCH] drivers/bch: Drivers may not support command BIOC_FLUSH

Calling `bchlib_flushsector()` maybe enough on some devices.

Signed-off-by: wangjianyu3 <wangjianyu3@xiaomi.com>
---
 drivers/bch/bchdev_driver.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/bch/bchdev_driver.c b/drivers/bch/bchdev_driver.c
index 726932c193..7032908a5b 100644
--- a/drivers/bch/bchdev_driver.c
+++ b/drivers/bch/bchdev_driver.c
@@ -459,6 +459,13 @@ static int bch_ioctl(FAR struct file *filep, int cmd, unsigned long arg)
           if (bchinode->u.i_bops->ioctl != NULL)
             {
               ret = bchinode->u.i_bops->ioctl(bchinode, cmd, arg);
+
+              /* Drivers may not support command BIOC_FLUSH */
+
+              if (ret == -ENOTTY && cmd == BIOC_FLUSH)
+                {
+                  ret = 0;
+                }
             }
         }
         break;