From 8391ad2721078bee91476dc5d7b9104623f48bb5 Mon Sep 17 00:00:00 2001
From: Xiang Xiao <xiaoxiang@xiaomi.com>
Date: Mon, 31 Jan 2022 16:36:24 +0800
Subject: [PATCH] syslog: Change g_syslog_default_sem to static function
 variable

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
---
 drivers/syslog/syslog_channel.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/syslog/syslog_channel.c b/drivers/syslog/syslog_channel.c
index 833c4fb358..1b26eef7f6 100644
--- a/drivers/syslog/syslog_channel.c
+++ b/drivers/syslog/syslog_channel.c
@@ -115,10 +115,6 @@ static struct syslog_channel_s g_rtt_channel =
 #endif
 
 #if defined(CONFIG_SYSLOG_DEFAULT)
-#  if defined(CONFIG_ARCH_LOWPUTC)
-static sem_t g_syslog_default_sem = SEM_INITIALIZER(1);
-#  endif
-
 static const struct syslog_channel_ops_s g_default_channel_ops =
 {
   syslog_default_putc,
@@ -184,15 +180,16 @@ static ssize_t syslog_default_write(FAR struct syslog_channel_s *channel,
                                     FAR const char *buffer, size_t buflen)
 {
 #if defined(CONFIG_ARCH_LOWPUTC)
+  static sem_t sem = SEM_INITIALIZER(1);
   size_t nwritten;
 
-  nxsem_wait(&g_syslog_default_sem);
+  nxsem_wait(&sem);
   for (nwritten = 0; nwritten < buflen; nwritten++)
     {
       up_putc(buffer[nwritten]);
     }
 
-  nxsem_post(&g_syslog_default_sem);
+  nxsem_post(&sem);
 #endif
 
   return buflen;