From 165bcc4a0708ff3252fe73156eace36b5980dbf9 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Thu, 27 Mar 2008 12:33:31 +0000
Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@249
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 src/chsem.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

(limited to 'src/chsem.c')

diff --git a/src/chsem.c b/src/chsem.c
index 14b8567ad..d1199f072 100644
--- a/src/chsem.c
+++ b/src/chsem.c
@@ -188,10 +188,12 @@ void chSemSignalI(Semaphore *sp) {
  * Performs atomic signal and wait operations on two semaphores.
  * @param sps pointer to a \p Semaphore structure to be signaled
  * @param spw pointer to a \p Semaphore structure to be wait on
- * @note The function is available only if the \p CH_USE_SEMAPHORES
+ * @return the function can return \p RDY_OK or \p RDY_RESET.
+ * @note The function is available only if the \p CH_USE_SEMSW
  *       option is enabled in \p chconf.h.
  */
-void chSemSignalWait(Semaphore *sps, Semaphore *spw) {
+msg_t chSemSignalWait(Semaphore *sps, Semaphore *spw) {
+  msg_t msg;
 
   chSysLock();
 
@@ -202,11 +204,15 @@ void chSemSignalWait(Semaphore *sps, Semaphore *spw) {
     fifo_insert(currp, &spw->s_queue);
     currp->p_wtsemp = spw;
     chSchGoSleepS(PRWTSEM);
+    msg = currp->p_rdymsg;
   }
-  else
+  else {
     chSchRescheduleS();
+    msg = RDY_OK;
+  }
 
   chSysUnlock();
+  return msg;
 }
 #endif /* CH_USE_SEMSW */
 
-- 
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