Fixes for warnings from Freddie Chopin

git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5294 42af7a65-404d-4744-a932-0658087f49c3

nuttx/sched/mq_open.c

@@ -113,7 +113,6 @@ mqd_t mq_open(const char *mq_name, int oflags, ...)
   FAR msgq_t     *msgq;
   mqd_t           mqdes = NULL;
   va_list         arg;          /* Points to each un-named argument */
-  mode_t          mode;         /* MQ creation mode parameter (ignored) */
   struct mq_attr *attr;         /* MQ creation attributes */
   int             namelen;      /* Length of MQ name */
 
@@ -170,7 +169,7 @@ mqd_t mq_open(const char *mq_name, int oflags, ...)
                        */
 
                       va_start(arg, oflags);
-                      mode = va_arg(arg, mode_t);
+                      (void)va_arg(arg, mode_t); /* MQ creation mode parameter (ignored) */
                       attr = va_arg(arg, struct mq_attr*);
 
                       /* Initialize the new named message queue */

nuttx/sched/sem_open.c

@@ -120,7 +120,6 @@ FAR sem_t *sem_open (FAR const char *name, int oflag, ...)
   FAR nsem_t  *psem;
   FAR sem_t   *sem = (FAR sem_t*)ERROR;
   va_list      arg;          /* Points to each un-named argument */
-  mode_t       mode;         /* Creation mode parameter (ignored) */
   unsigned int value;        /* Semaphore value parameter */
 
   /* Make sure that a non-NULL name is supplied */
@@ -165,7 +164,7 @@ FAR sem_t *sem_open (FAR const char *name, int oflag, ...)
                */
 
               va_start(arg, oflag);
-              mode = va_arg(arg, mode_t);
+              (void)va_arg(arg, mode_t); /* Creation mode parameter (ignored) */
               value = va_arg(arg, unsigned int);
 
               /* Verify that a legal initial value was selected. */