Fix some compilation warning (#5744)

* Fix some compilation warning

* 补充修正一些数据类型的使用错误

Co-authored-by: Meco Man <[email protected]>

3 files changed, 13 insertions, 9 deletions

diff --git a/components/drivers/i2c/i2c-bit-ops.c b/components/drivers/i2c/i2c-bit-ops.c
index ae1f4db9c0..08fa5a836c 100644
--- a/components/drivers/i2c/i2c-bit-ops.c
+++ b/components/drivers/i2c/i2c-bit-ops.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2021, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -404,7 +404,9 @@ static rt_size_t i2c_bit_xfer(struct rt_i2c_bus_device *bus,
         {
             ret = i2c_recv_bytes(bus, msg);
             if (ret >= 1)
+            {
                 LOG_D("read %d byte%s", ret, ret == 1 ? "" : "s");
+            }
             if (ret < msg->len)
             {
                 if (ret >= 0)
@@ -416,7 +418,9 @@ static rt_size_t i2c_bit_xfer(struct rt_i2c_bus_device *bus,
         {
             ret = i2c_send_bytes(bus, msg);
             if (ret >= 1)
+            {
                 LOG_D("write %d byte%s", ret, ret == 1 ? "" : "s");
+            }
             if (ret < msg->len)
             {
                 if (ret >= 0)
diff --git a/components/drivers/i2c/i2c_core.c b/components/drivers/i2c/i2c_core.c
index c629765f65..39147be605 100644
--- a/components/drivers/i2c/i2c_core.c
+++ b/components/drivers/i2c/i2c_core.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2021, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -108,7 +108,7 @@ rt_size_t rt_i2c_master_send(struct rt_i2c_bus_device *bus,
                              const rt_uint8_t         *buf,
                              rt_uint32_t               count)
 {
-    rt_err_t ret;
+    rt_size_t ret;
     struct rt_i2c_msg msg;
 
     msg.addr  = addr;
@@ -127,7 +127,7 @@ rt_size_t rt_i2c_master_recv(struct rt_i2c_bus_device *bus,
                              rt_uint8_t               *buf,
                              rt_uint32_t               count)
 {
-    rt_err_t ret;
+    rt_size_t ret;
     struct rt_i2c_msg msg;
     RT_ASSERT(bus != RT_NULL);
 
diff --git a/components/drivers/serial/serial.c b/components/drivers/serial/serial.c
index d39acb298f..00d6671f37 100644
--- a/components/drivers/serial/serial.c
+++ b/components/drivers/serial/serial.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006-2021, RT-Thread Development Team
+ * Copyright (c) 2006-2022, RT-Thread Development Team
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -200,7 +200,7 @@ static int serial_fops_poll(struct dfs_fd *fd, struct rt_pollreq *req)
     return mask;
 }
 
-const static struct dfs_file_ops _serial_fops =
+static const struct dfs_file_ops _serial_fops =
 {
     serial_fops_open,
     serial_fops_close,
@@ -900,7 +900,7 @@ struct speed_baudrate_item
     int baudrate;
 };
 
-const static struct speed_baudrate_item _tbl[] =
+static const struct speed_baudrate_item _tbl[] =
 {
     {B2400, BAUD_RATE_2400},
     {B4800, BAUD_RATE_4800},
@@ -918,7 +918,7 @@ const static struct speed_baudrate_item _tbl[] =
 
 static speed_t _get_speed(int baudrate)
 {
-    int index;
+    size_t index;
 
     for (index = 0; index < sizeof(_tbl)/sizeof(_tbl[0]); index ++)
     {
@@ -931,7 +931,7 @@ static speed_t _get_speed(int baudrate)
 
 static int _get_baudrate(speed_t speed)
 {
-    int index;
+    size_t index;
 
     for (index = 0; index < sizeof(_tbl)/sizeof(_tbl[0]); index ++)
     {