Made dtors virtual, tested on IO and FMU

apps/drivers/blinkm/blinkm.cpp

@@ -127,7 +127,7 @@ class BlinkM : public device::I2C
 {
 public:
 	BlinkM(int bus, int blinkm);
-	~BlinkM();
+	virtual ~BlinkM();
 
 
 	virtual int		init();

apps/drivers/bma180/bma180.cpp

@@ -126,7 +126,7 @@ class BMA180 : public device::SPI
 {
 public:
 	BMA180(int bus, spi_dev_e device);
-	~BMA180();
+	virtual ~BMA180();
 
 	virtual int		init();
 

apps/drivers/gps/gps.cpp

@@ -86,7 +86,7 @@ class GPS : public device::CDev
 {
 public:
 	GPS(const char* uart_path);
-	~GPS();
+	virtual ~GPS();
 
 	virtual int			init();
 

apps/drivers/hil/hil.cpp

@@ -91,7 +91,7 @@ public:
 		MODE_NONE
 	};
 	HIL();
-	~HIL();
+	virtual ~HIL();
 
 	virtual int	ioctl(file *filp, int cmd, unsigned long arg);
 

apps/drivers/hmc5883/hmc5883.cpp

@@ -130,7 +130,7 @@ class HMC5883 : public device::I2C
 {
 public:
 	HMC5883(int bus);
-	~HMC5883();
+	virtual ~HMC5883();
 
 	virtual int		init();
 

apps/drivers/l3gd20/l3gd20.cpp

@@ -152,7 +152,7 @@ class L3GD20 : public device::SPI
 {
 public:
 	L3GD20(int bus, const char* path, spi_dev_e device);
-	~L3GD20();
+	virtual ~L3GD20();
 
 	virtual int		init();
 

apps/drivers/led/led.cpp

@@ -53,7 +53,7 @@ class LED : device::CDev
 {
 public:
 	LED();
-	~LED();
+	virtual ~LED();
 
 	virtual int		init();
 	virtual int		ioctl(struct file *filp, int cmd, unsigned long arg);

apps/drivers/mb12xx/mb12xx.cpp

@@ -100,7 +100,7 @@ class MB12XX : public device::I2C
 {
 public:
 	MB12XX(int bus = MB12XX_BUS, int address = MB12XX_BASEADDR);
-	~MB12XX();
+	virtual ~MB12XX();
 	
 	virtual int 		init();
 	

apps/drivers/mpu6000/mpu6000.cpp

@@ -151,7 +151,7 @@ class MPU6000 : public device::SPI
 {
 public:
 	MPU6000(int bus, spi_dev_e device);
-	~MPU6000();
+	virtual ~MPU6000();
 
 	virtual int		init();
 

apps/drivers/ms5611/ms5611.cpp

@@ -104,7 +104,7 @@ class MS5611 : public device::I2C
 {
 public:
 	MS5611(int bus);
-	~MS5611();
+	virtual ~MS5611();
 
 	virtual int		init();
 

apps/drivers/px4fmu/fmu.cpp

@@ -82,7 +82,7 @@ public:
 		MODE_NONE
 	};
 	PX4FMU();
-	~PX4FMU();
+	virtual ~PX4FMU();
 
 	virtual int	ioctl(file *filp, int cmd, unsigned long arg);
 	virtual ssize_t	write(file *filp, const char *buffer, size_t len);

apps/drivers/px4io/px4io.cpp

@@ -91,7 +91,7 @@ class PX4IO : public device::I2C
 {
 public:
 	PX4IO();
-	~PX4IO();
+	virtual ~PX4IO();
 
 	virtual int		init();
 

apps/drivers/px4io/uploader.h

@@ -46,7 +46,7 @@ class PX4IO_Uploader
 {
 public:
 	PX4IO_Uploader();
-	~PX4IO_Uploader();
+	virtual ~PX4IO_Uploader();
 
 	int			upload(const char *filenames[]);
 

apps/mavlink_onboard/mavlink.c

@@ -498,7 +498,7 @@ int mavlink_onboard_main(int argc, char *argv[])
 		mavlink_task = task_spawn("mavlink_onboard",
 					  SCHED_DEFAULT,
 					  SCHED_PRIORITY_DEFAULT,
-					  6000 /* XXX probably excessive */,
+					  2048,
 					  mavlink_thread_main,
 					  (const char**)argv);
 		exit(0);

apps/systemlib/mixer/mixer.h

@@ -160,7 +160,7 @@ public:
 	 * @param control_cb		Callback invoked when reading controls.
 	 */
 	Mixer(ControlCallback control_cb, uintptr_t cb_handle);
-	~Mixer() {};
+	virtual ~Mixer() {};
 
 	/**
 	 * Perform the mixing function.