From 905d7fa3a283d75969373783feeeff331157304e Mon Sep 17 00:00:00 2001
From: Sebastian Huber <sebastian.huber@embedded-brains.de>
Date: Tue, 24 Apr 2018 15:23:39 +0200
Subject: drvmgr: Use API mutex usage

The driver manager lock may be used before the executing thread is
initialized.
---
 cpukit/libdrvmgr/drvmgr_lock.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

(limited to 'cpukit/libdrvmgr')

diff --git a/cpukit/libdrvmgr/drvmgr_lock.c b/cpukit/libdrvmgr/drvmgr_lock.c
index c7a1104eef..23cdb137e6 100644
--- a/cpukit/libdrvmgr/drvmgr_lock.c
+++ b/cpukit/libdrvmgr/drvmgr_lock.c
@@ -7,16 +7,20 @@
  * http://www.rtems.org/license/LICENSE.
  */
 
-#include <rtems.h>
 #include <drvmgr/drvmgr.h>
 #include "drvmgr_internal.h"
+#include <rtems/score/sysstate.h>
 
-void _DRV_Manager_Lock(void)
+void _DRV_Manager_Lock( void )
 {
-	_API_Mutex_Lock(&drvmgr.lock);
+  if ( !_System_state_Is_before_multitasking( _System_state_Get() ) ) {
+    _API_Mutex_Lock( &drvmgr.lock );
+  }
 }
 
 void _DRV_Manager_Unlock(void)
 {
-	_API_Mutex_Unlock(&drvmgr.lock);
+  if ( !_System_state_Is_before_multitasking( _System_state_Get() ) ) {
+    _API_Mutex_Unlock( &drvmgr.lock );
+  }
 }
-- 
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