From 661d3823228c4414d30ef1947683e81f306e95d1 Mon Sep 17 00:00:00 2001
From: ligd <liguiding1@xiaomi.com>
Date: Tue, 6 Feb 2024 11:49:16 +0800
Subject: [PATCH] syslog_rpmsg: handle syslog_rpmsg_transfer() return value

in case of only update head

Signed-off-by: ligd <liguiding1@xiaomi.com>
---
 drivers/syslog/syslog_rpmsg.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/syslog/syslog_rpmsg.c b/drivers/syslog/syslog_rpmsg.c
index 0aa1db1168..99af9e3c71 100644
--- a/drivers/syslog/syslog_rpmsg.c
+++ b/drivers/syslog/syslog_rpmsg.c
@@ -189,11 +189,14 @@ static void syslog_rpmsg_putchar(FAR struct syslog_rpmsg_s *priv, int ch,
 {
   if (priv->head + 1 - priv->tail >= priv->size)
     {
+      bool ret = false;
+
       if (!priv->flush && !up_interrupt_context() && !sched_idletask())
         {
-          syslog_rpmsg_transfer(priv, true);
+          ret = syslog_rpmsg_transfer(priv, true);
         }
-      else
+
+      if (!ret)
         {
           /* Overwrite */