[rtems commit] posix: Use proper lock for signals

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    7d217001ab977a343d26a9be8859924c99347652
Changeset: http://git.rtems.org/rtems/commit/?id=7d217001ab977a343d26a9be8859924c99347652

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Mon Apr  4 06:47:41 2016 +0200

posix: Use proper lock for signals

---

 cpukit/posix/src/killinfo.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/cpukit/posix/src/killinfo.c b/cpukit/posix/src/killinfo.c
index a29a8e6..7a70539 100644
--- a/cpukit/posix/src/killinfo.c
+++ b/cpukit/posix/src/killinfo.c
@@ -75,6 +75,7 @@ int killinfo(
   siginfo_t                   *siginfo;
   POSIX_signals_Siginfo_node  *psiginfo;
   Thread_queue_Heads          *heads;
+  ISR_lock_Context             lock_context;
 
   /*
    *  Only supported for the "calling process" (i.e. this node).
@@ -331,20 +332,27 @@ post_process_signal:
    */
   _POSIX_signals_Set_process_signals( mask );
 
+  _POSIX_signals_Acquire( &lock_context );
+
   if ( _POSIX_signals_Vectors[ sig ].sa_flags == SA_SIGINFO ) {
 
     psiginfo = (POSIX_signals_Siginfo_node *)
-               _Chain_Get( &_POSIX_signals_Inactive_siginfo );
+      _Chain_Get_unprotected( &_POSIX_signals_Inactive_siginfo );
     if ( !psiginfo ) {
+      _POSIX_signals_Release( &lock_context );
       _Thread_Enable_dispatch();
       rtems_set_errno_and_return_minus_one( EAGAIN );
     }
 
     psiginfo->Info = *siginfo;
 
-    _Chain_Append( &_POSIX_signals_Siginfo[ sig ], &psiginfo->Node );
+    _Chain_Append_unprotected(
+      &_POSIX_signals_Siginfo[ sig ],
+      &psiginfo->Node
+    );
   }
 
+  _POSIX_signals_Release( &lock_context );
   DEBUG_STEP("\n");
   _Thread_Enable_dispatch();
   return 0;