From 1422569e7cae6d7d6cef64e60ac3afe12b53f617 Mon Sep 17 00:00:00 2001
From: Grissiom <chaos.proton@gmail.com>
Date: Sat, 12 Apr 2014 16:54:20 +0800
Subject: [PATCH] pthreads: remove some useless variables

---
 components/pthreads/mqueue.c         | 3 ---
 components/pthreads/pthread_rwlock.c | 2 +-
 components/pthreads/semaphore.c      | 2 --
 3 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/components/pthreads/mqueue.c b/components/pthreads/mqueue.c
index 7b669dc367..c1303ae6b1 100644
--- a/components/pthreads/mqueue.c
+++ b/components/pthreads/mqueue.c
@@ -119,7 +119,6 @@ mqd_t mq_open(const char *name, int oflag, ...)
 {
     mqd_t mqdes;
     va_list arg;
-    mode_t mode;
     struct mq_attr *attr = RT_NULL;
 
     /* lock posix mqueue list */
@@ -129,8 +128,6 @@ mqd_t mq_open(const char *name, int oflag, ...)
     if (oflag & O_CREAT)
     {
         va_start(arg, oflag);
-        mode = (mode_t)va_arg(arg, unsigned int);
-        mode = mode;
         attr = (struct mq_attr *)va_arg(arg, struct mq_attr *);
         va_end(arg);
 
diff --git a/components/pthreads/pthread_rwlock.c b/components/pthreads/pthread_rwlock.c
index 968c82b89f..3e009034cc 100644
--- a/components/pthreads/pthread_rwlock.c
+++ b/components/pthreads/pthread_rwlock.c
@@ -101,7 +101,7 @@ int pthread_rwlock_destroy (pthread_rwlock_t *rwlock)
     {
         result = EBUSY;
 
-        return(EBUSY);
+        return result;
     }
     else
     {
diff --git a/components/pthreads/semaphore.c b/components/pthreads/semaphore.c
index ae69e0d1bc..726246c95f 100644
--- a/components/pthreads/semaphore.c
+++ b/components/pthreads/semaphore.c
@@ -224,7 +224,6 @@ sem_t *sem_open(const char *name, int oflag, ...)
 {
     sem_t* sem;
     va_list arg;
-    mode_t mode;
     unsigned int value;
 
     sem = RT_NULL;
@@ -234,7 +233,6 @@ sem_t *sem_open(const char *name, int oflag, ...)
     if (oflag & O_CREAT)
     {
         va_start(arg, oflag);
-        mode = (mode_t) va_arg( arg, unsigned int); mode = mode;
         value = va_arg( arg, unsigned int);
         va_end(arg);
 
-- 
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