Merge branch 'master' of https://github.com/rt-thread/rt-thread into rtt_issues

2 files changed, 45 insertions, 5 deletions

diff --git a/components/drivers/src/dataqueue.c b/components/drivers/src/dataqueue.c
index 7553986b9f..5a802c0711 100644
--- a/components/drivers/src/dataqueue.c
+++ b/components/drivers/src/dataqueue.c
@@ -13,6 +13,8 @@
 #include <rtdevice.h>
 #include <rthw.h>
 
+#define DATAQUEUE_MAGIC  0xbead0e0e
+
 struct rt_data_item
 {
     const void *data_ptr;
@@ -29,6 +31,7 @@ rt_data_queue_init(struct rt_data_queue *queue,
 
     queue->evt_notify = evt_notify;
 
+    queue->magic = DATAQUEUE_MAGIC;
     queue->size = size;
     queue->lwm = lwm;
 
@@ -57,6 +60,7 @@ rt_err_t rt_data_queue_push(struct rt_data_queue *queue,
     rt_thread_t thread;
     rt_err_t    result;
     
+    RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
     RT_ASSERT(queue != RT_NULL);
 
     result = RT_EOK;
@@ -145,7 +149,8 @@ rt_err_t rt_data_queue_pop(struct rt_data_queue *queue,
     rt_ubase_t  level;
     rt_thread_t thread;
     rt_err_t    result;
-
+    
+    RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
     RT_ASSERT(queue != RT_NULL);
     RT_ASSERT(data_ptr != RT_NULL);
     RT_ASSERT(size != RT_NULL);
@@ -244,7 +249,8 @@ rt_err_t rt_data_queue_peak(struct rt_data_queue *queue,
                             rt_size_t *size)
 {
     rt_ubase_t  level;
-
+    
+    RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
     RT_ASSERT(queue != RT_NULL);
 
     level = rt_hw_interrupt_disable();
@@ -269,7 +275,9 @@ void rt_data_queue_reset(struct rt_data_queue *queue)
 {
     struct rt_thread *thread;
     register rt_ubase_t temp;
-
+    
+    RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
+    
     rt_enter_critical();
     /* wakeup all suspend threads */
 
@@ -325,3 +333,24 @@ void rt_data_queue_reset(struct rt_data_queue *queue)
     rt_schedule();
 }
 RTM_EXPORT(rt_data_queue_reset);
+
+rt_err_t rt_data_queue_deinit(struct rt_data_queue *queue)
+{
+    rt_ubase_t level;
+
+    RT_ASSERT(queue->magic == DATAQUEUE_MAGIC);
+    RT_ASSERT(queue != RT_NULL);
+
+    level = rt_hw_interrupt_disable();
+
+    /* wakeup all suspend threads */
+    rt_data_queue_reset(queue);
+
+    queue->magic = 0;
+    rt_free(queue->queue);
+    
+    rt_hw_interrupt_enable(level);
+
+    return RT_EOK;
+}
+RTM_EXPORT(rt_data_queue_deinit);
diff --git a/components/drivers/src/pipe.c b/components/drivers/src/pipe.c
index ae87b6f5f2..2a7e143f6c 100644
--- a/components/drivers/src/pipe.c
+++ b/components/drivers/src/pipe.c
@@ -323,18 +323,29 @@ static const struct dfs_file_ops pipe_fops =
 rt_err_t  rt_pipe_open (rt_device_t device, rt_uint16_t oflag)
 {
     rt_pipe_t *pipe = (rt_pipe_t *)device;
+    rt_err_t ret = RT_EOK;
 
-    if (device == RT_NULL) return -RT_EINVAL;
+    if (device == RT_NULL)
+    {
+        ret = -RT_EINVAL;
+        goto __exit;
+    }
+    
     rt_mutex_take(&(pipe->lock), RT_WAITING_FOREVER);
 
     if (pipe->fifo == RT_NULL)
     {
         pipe->fifo = rt_ringbuffer_create(pipe->bufsz);
+        if (pipe->fifo == RT_NULL)
+        {
+            ret = -RT_ENOMEM;
+        }
     }
 
     rt_mutex_release(&(pipe->lock));
 
-    return RT_EOK;
+__exit:
+    return ret;
 }
 
 rt_err_t  rt_pipe_close  (rt_device_t device)