Fixed some sitl init bugs.

src/platforms/posix/drivers/adcsim/adcsim.cpp

@@ -111,6 +111,7 @@ private:
 
 ADCSIM::ADCSIM(uint32_t channels) :
 	VDev("adcsim", ADCSIM0_DEVICE_PATH),
+	_call(),
 	_sample_perf(perf_alloc(PC_ELAPSED, "adc_samples")),
 	_channel_count(0),
 	_samples(nullptr)

src/platforms/posix/px4_layer/px4_posix_tasks.cpp

@@ -81,9 +81,7 @@ typedef struct {
 
 static void *entry_adapter(void *ptr)
 {
-	pthdata_t *data;
-	data = (pthdata_t *) ptr;
-
+	pthdata_t *data = (pthdata_t *) ptr;
 	data->entry(data->argc, data->argv);
 	free(ptr);
 	PX4_DEBUG("Before px4_task_exit");