fix 'statement is unreachable' IAR warning

ShuopengDeng · ShuopengDeng · commit 7817a228e99f · 2019-12-12T17:05:11.000-08:00
diff --git a/targets/TARGET_Cypress/TARGET_PSOC6/cy_serial_api.c b/targets/TARGET_Cypress/TARGET_PSOC6/cy_serial_api.c
@@ -125,7 +125,6 @@ void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_b
             break;
         default:
             MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_SERIAL, MBED_ERROR_CODE_UNSUPPORTED), "Unsupported parity");
-            return;
     }
     cyhal_uart_cfg_t cfg = {
         .data_bits = data_bits,
diff --git a/targets/TARGET_Cypress/TARGET_PSOC6/cy_spi_api.c b/targets/TARGET_Cypress/TARGET_PSOC6/cy_spi_api.c
@@ -45,7 +45,6 @@ SPIName spi_get_peripheral_name(PinName mosi, PinName miso, PinName mclk)
         return (SPIName)CYHAL_SCB_BASE_ADDRESSES[map->inst->block_num];
     }
     MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_SPI, MBED_ERROR_CODE_FAILED_OPERATION), "SPI not found");
-    return (SPIName)0;
 }
 
 static void cy_spi_irq_handler_internal(void *handler_arg, cyhal_spi_event_t event)

Original file line number	Diff line number	Diff line change
`@@ -125,7 +125,6 @@ void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_b`
`125`	`125`	`break;`
`126`	`126`	`default:`
`127`	`127`	`MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_SERIAL, MBED_ERROR_CODE_UNSUPPORTED), "Unsupported parity");`
`128`		`- return;`
`129`	`128`	`}`
`130`	`129`	`cyhal_uart_cfg_t cfg = {`
`131`	`130`	`.data_bits = data_bits,`
Original file line number	Diff line number	Diff line change
`@@ -45,7 +45,6 @@ SPIName spi_get_peripheral_name(PinName mosi, PinName miso, PinName mclk)`
`45`	`45`	`return (SPIName)CYHAL_SCB_BASE_ADDRESSES[map->inst->block_num];`
`46`	`46`	`}`
`47`	`47`	`MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_SPI, MBED_ERROR_CODE_FAILED_OPERATION), "SPI not found");`
`48`		`- return (SPIName)0;`
`49`	`48`	`}`
`50`	`49`
`51`	`50`	`static void cy_spi_irq_handler_internal(void *handler_arg, cyhal_spi_event_t event)`