some printf format and conversion fixes

src/drivers/adc/ADC.cpp

@@ -51,7 +51,7 @@ ADC::ADC(uint32_t base_address, uint32_t channels) :
 	}
 
 	if (_channel_count > PX4_MAX_ADC_CHANNELS) {
-		PX4_ERR("PX4_MAX_ADC_CHANNELS is too small:is %d needed:%d", PX4_MAX_ADC_CHANNELS, _channel_count);
+		PX4_ERR("PX4_MAX_ADC_CHANNELS is too small (%d, %d)", (unsigned)PX4_MAX_ADC_CHANNELS, _channel_count);
 	}
 
 	_samples = new px4_adc_msg_t[_channel_count];

src/drivers/distance_sensor/mappydot/MappyDot.cpp

@@ -180,7 +180,7 @@ private:
 	/**
 	 * Sends an i2c measure command to check for presence of a sensor.
 	 */
-	int probe();
+	int probe() override;
 
 	/**
 	 * Collects the most recent sensor measurement data from the i2c bus.
@@ -195,7 +195,7 @@ private:
 	px4::Array<uint8_t, RANGE_FINDER_MAX_SENSORS> _sensor_addresses {};
 	px4::Array<uint8_t, RANGE_FINDER_MAX_SENSORS> _sensor_rotations {};
 
-	size_t _sensor_count{0};
+	int _sensor_count{0};
 
 	orb_advert_t _distance_sensor_topic{nullptr};
 
@@ -245,7 +245,7 @@ MappyDot::collect()
 	perf_begin(_sample_perf);
 
 	// Increment the sensor index, (limited to the number of sensors connected).
-	for (size_t index = 0; index < _sensor_count; index++) {
+	for (int index = 0; index < _sensor_count; index++) {
 
 		// Set address of the current sensor to collect data from.
 		set_device_address(_sensor_addresses[index]);
@@ -332,7 +332,7 @@ MappyDot::init()
 
 	// Check for connected rangefinders on each i2c port,
 	// starting from the base address 0x08 and incrementing
-	for (size_t i = 0; i <= RANGE_FINDER_MAX_SENSORS; i++) {
+	for (int i = 0; i <= RANGE_FINDER_MAX_SENSORS; i++) {
 		set_device_address(MAPPYDOT_BASE_ADDR + i);
 
 		// Check if a sensor is present.

src/drivers/distance_sensor/mb12xx/mb12xx.cpp

@@ -149,11 +149,10 @@ private:
 	px4::Array<uint8_t, RANGE_FINDER_MAX_SENSORS> _sensor_rotations {};
 
 	int _measure_interval{MB12XX_MEASURE_INTERVAL};	// Initialize the measure interval for a single sensor.
-	int _orb_class_instance{-1};
 
-	size_t _sensor_index{0};	// Initialize counter for cycling i2c adresses to zero.
+	int _sensor_index{0};	// Initialize counter for cycling i2c adresses to zero.
 
-	size_t _sensor_count{0};
+	int _sensor_count{0};
 
 	orb_advert_t _distance_sensor_topic{nullptr};
 
@@ -347,8 +346,8 @@ MB12XX::print_status()
 	perf_print_counter(_comms_error);
 	PX4_INFO("poll interval:  %ums", _measure_interval / 1000);
 
-	for (size_t i = 0; i < _sensor_count; i++) {
-		PX4_INFO("sensor: %u, address %u", i, _sensor_addresses[i]);
+	for (int i = 0; i < _sensor_count; i++) {
+		PX4_INFO("sensor: %i, address %u", i, _sensor_addresses[i]);
 	}
 }
 

src/drivers/distance_sensor/ulanding_radar/AerotennaULanding.hpp

@@ -113,9 +113,6 @@ private:
 
 	int _file_descriptor{-1};
 
-	unsigned int _head{0};
-	unsigned int _tail{0};
-
 	uint8_t _buffer[ULANDING_BUFFER_LENGTH] {};
 
 	perf_counter_t _comms_errors{perf_alloc(PC_COUNT, MODULE_NAME": com_err")};

src/drivers/rc_input/RCInput.cpp

@@ -337,7 +337,7 @@ void RCInput::Run()
 		constexpr hrt_abstime rc_scan_max = 300_ms;
 
 		bool sbus_failsafe, sbus_frame_drop;
-		unsigned frame_drops;
+		unsigned frame_drops = 0;
 		bool dsm_11_bit;
 
 		if (_report_lock && _rc_scan_locked) {