From dce8c96281dc66082c4f2ad686d3f699fb52439d Mon Sep 17 00:00:00 2001
From: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
Date: Fri, 31 Dec 2021 15:22:50 +0800
Subject: [PATCH] uart_rpmsg: fix data loss

Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
---
 drivers/serial/uart_rpmsg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/serial/uart_rpmsg.c b/drivers/serial/uart_rpmsg.c
index c00839ba09..b63a2deb86 100644
--- a/drivers/serial/uart_rpmsg.c
+++ b/drivers/serial/uart_rpmsg.c
@@ -255,7 +255,7 @@ static void uart_rpmsg_dmasend(FAR struct uart_dev_s *dev)
   if (len > xfer->length)
     {
       memcpy(msg->data, xfer->buffer, xfer->length);
-      memcpy(msg->data, xfer->nbuffer, len - xfer->length);
+      memcpy(msg->data + xfer->length, xfer->nbuffer, len - xfer->length);
     }
   else
     {