rpmsgfs/rpmsgfs_client: init the priv->wait before register rpmsg cal…

…lback

Should init the priv->wait before rpmsg_register_callback() because
rpmsgfs_ns_bound() may has been called before rpmsg_register_callback()
returned.

Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>

fs/rpmsgfs/rpmsgfs_client.c

@@ -744,6 +744,7 @@ int rpmsgfs_client_bind(FAR void **handle, FAR const char *cpuname)
       return -ENOMEM;
     }
 
+  nxsem_init(&priv->wait, 0, 0);
   strlcpy(priv->cpuname, cpuname, sizeof(priv->cpuname));
   ret = rpmsg_register_callback(priv,
                                 rpmsgfs_device_created,
@@ -752,11 +753,11 @@ int rpmsgfs_client_bind(FAR void **handle, FAR const char *cpuname)
                                 NULL);
   if (ret < 0)
     {
+      nxsem_destroy(&priv->wait);
       fs_heap_free(priv);
       return ret;
     }
 
-  nxsem_init(&priv->wait, 0, 0);
   *handle = priv;
 
   return 0;