Fixup the QSPI transfer result check

The result could < 0 (with error number) now.

Signed-off-by: GuEe-GUI <[email protected]>

Author: GuEe-GUI

components/drivers/include/drivers/dev_spi.h

@@ -603,7 +603,7 @@ rt_err_t rt_qspi_bus_register(struct rt_spi_bus *bus, const char *name, const st
  *
  * @return the actual length of transmitted.
  */
-rt_size_t rt_qspi_transfer_message(struct rt_qspi_device  *device, struct rt_qspi_message *message);
+rt_ssize_t rt_qspi_transfer_message(struct rt_qspi_device  *device, struct rt_qspi_message *message);
 
 /**
  * @brief This function can send data then receive data from QSPI device
@@ -616,7 +616,7 @@ rt_size_t rt_qspi_transfer_message(struct rt_qspi_device  *device, struct rt_qsp
  *
  * @return the status of transmit.
  */
-rt_err_t rt_qspi_send_then_recv(struct rt_qspi_device *device, const void *send_buf, rt_size_t send_length,void *recv_buf, rt_size_t recv_length);
+rt_ssize_t rt_qspi_send_then_recv(struct rt_qspi_device *device, const void *send_buf, rt_size_t send_length,void *recv_buf, rt_size_t recv_length);
 
 /**
  * @brief This function can send data to QSPI device
@@ -627,7 +627,7 @@ rt_err_t rt_qspi_send_then_recv(struct rt_qspi_device *device, const void *send_
  *
  * @return the status of transmit.
  */
-rt_err_t rt_qspi_send(struct rt_qspi_device *device, const void *send_buf, rt_size_t length);
+rt_ssize_t rt_qspi_send(struct rt_qspi_device *device, const void *send_buf, rt_size_t length);
 
 #ifdef __cplusplus
 }

components/drivers/spi/dev_qspi_core.c

@@ -77,9 +77,9 @@ rt_err_t rt_qspi_bus_register(struct rt_spi_bus *bus, const char *name, const st
     return spi_bus_register(bus, name, ops);
 }
 
-rt_size_t rt_qspi_transfer_message(struct rt_qspi_device  *device, struct rt_qspi_message *message)
+rt_ssize_t rt_qspi_transfer_message(struct rt_qspi_device  *device, struct rt_qspi_message *message)
 {
-    rt_err_t result;
+    rt_ssize_t result;
 
     RT_ASSERT(device != RT_NULL);
     RT_ASSERT(message != RT_NULL);
@@ -128,7 +128,7 @@ rt_size_t rt_qspi_transfer_message(struct rt_qspi_device  *device, struct rt_qsp
     return result;
 }
 
-rt_err_t rt_qspi_send_then_recv(struct rt_qspi_device *device, const void *send_buf, rt_size_t send_length, void *recv_buf, rt_size_t recv_length)
+rt_ssize_t rt_qspi_send_then_recv(struct rt_qspi_device *device, const void *send_buf, rt_size_t send_length, void *recv_buf, rt_size_t recv_length)
 {
     RT_ASSERT(send_buf);
     RT_ASSERT(recv_buf);
@@ -137,7 +137,7 @@ rt_err_t rt_qspi_send_then_recv(struct rt_qspi_device *device, const void *send_
     struct rt_qspi_message message;
     unsigned char *ptr = (unsigned char *)send_buf;
     rt_size_t count = 0;
-    rt_err_t result = 0;
+    rt_ssize_t result = 0;
 
     message.instruction.content = ptr[0];
     message.instruction.qspi_lines = 1;
@@ -206,23 +206,23 @@ rt_err_t rt_qspi_send_then_recv(struct rt_qspi_device *device, const void *send_
     {
         result = -RT_EIO;
     }
-    else
+    else if (result > 0)
     {
         result = recv_length;
     }
 
     return result;
 }
 
-rt_err_t rt_qspi_send(struct rt_qspi_device *device, const void *send_buf, rt_size_t length)
+rt_ssize_t rt_qspi_send(struct rt_qspi_device *device, const void *send_buf, rt_size_t length)
 {
     RT_ASSERT(send_buf);
     RT_ASSERT(length != 0);
 
     struct rt_qspi_message message;
     unsigned char *ptr = (unsigned char *)send_buf;
     rt_size_t  count = 0;
-    rt_err_t result = 0;
+    rt_ssize_t result = 0;
 
     message.instruction.content = ptr[0];
     message.instruction.qspi_lines = 1;
@@ -292,7 +292,7 @@ rt_err_t rt_qspi_send(struct rt_qspi_device *device, const void *send_buf, rt_si
     {
         result = -RT_EIO;
     }
-    else
+    else if (result > 0)
     {
         result = length;
     }