[POSIX] fix mq_open and sem_open argument issue.

Author: BernardXiong

Diff for: components/pthreads/mqueue.c

@@ -119,6 +119,7 @@ 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 */
@@ -128,6 +129,8 @@ 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 for: components/pthreads/semaphore.c

@@ -224,6 +224,7 @@ sem_t *sem_open(const char *name, int oflag, ...)
 {
     sem_t* sem;
     va_list arg;
+    mode_t mode;
     unsigned int value;
 
     sem = RT_NULL;
@@ -233,6 +234,7 @@ 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);