[components] Update dfs and lwIP 2.0.2 re-initialization process.

components/dfs/src/dfs.c

@@ -55,15 +55,15 @@ static int  fd_alloc(struct dfs_fdtable *fdt, int startfd);
 /**
  * this function will initialize device file system.
  */
-static volatile uint8_t init_ok = 0;
 int dfs_init(void)
 {
-    if(init_ok)
+    static rt_bool_t init_ok = RT_FALSE;
+
+    if (init_ok)
     {
         rt_kprintf("dfs already init.\n");
         return 0;
     }
-    init_ok = 1;	
 
     /* clear filesystem operations table */
     memset((void *)filesystem_operation_table, 0, sizeof(filesystem_operation_table));
@@ -92,6 +92,8 @@ int dfs_init(void)
     }
 #endif
 
+    init_ok = RT_TRUE;
+
     return 0;
 }
 INIT_PREV_EXPORT(dfs_init);

components/net/lwip-2.0.2/src/arch/sys_arch.c

@@ -136,18 +136,17 @@ static void tcpip_init_done_callback(void *arg)
  * LwIP system initialization
  */
 extern int eth_system_device_init_private(void);
-static volatile uint8_t init_ok = 0;
 int lwip_system_init(void)
 {
     rt_err_t rc;
     struct rt_semaphore done_sem;
+    static rt_bool_t init_ok = RT_FALSE;
 
-    if(init_ok)
+    if (init_ok)
     {
         rt_kprintf("lwip system already init.\n");
         return 0;
     }
-    init_ok = 1;
 
     eth_system_device_init_private();
 
@@ -189,6 +188,8 @@ int lwip_system_init(void)
 #endif
     rt_kprintf("lwIP-%d.%d.%d initialized!\n", LWIP_VERSION_MAJOR, LWIP_VERSION_MINOR, LWIP_VERSION_REVISION);
 
+    init_ok = RT_TRUE;
+
     return 0;
 }
 INIT_PREV_EXPORT(lwip_system_init);