Fix spidev init (#363)

* Fix spidev init

Signed-off-by: Cervenka Dusan <[email protected]>

* Fix receive error value for spidev

Signed-off-by: Cervenka Dusan <[email protected]>

---------

Signed-off-by: Cervenka Dusan <[email protected]>

Author: Hadatko

erpc_c/transports/erpc_spidev_master_transport.cpp

@@ -108,7 +108,7 @@ SpidevMasterTransport::~SpidevMasterTransport(void)
 
 erpc_status_t SpidevMasterTransport::init(void)
 {
-    erpc_status_t status;
+    erpc_status_t status = kErpcStatus_Success;
 
     /* Initialize the SPI device */
     /* Open SPI device file descriptor */
@@ -217,7 +217,7 @@ erpc_status_t SpidevMasterTransport::underlyingReceive(uint8_t *data, uint32_t s
 
     if (ERPC_SPIDEV_STATUS_SUCCESS != spidev_transfer(m_spidevHandle, NULL, data, size))
     {
-        status = kErpcStatus_SendFailed;
+        status = kErpcStatus_ReceiveFailed;
     }
 
     return status;