Pass argument to thread - c

Question

I'm doing my assignment about thread. I need to do 3 thread, first compute temperature value, second compute pressure value and third thread, I need to pass those value and display it. But when I'm compile, I got segmentation fault (core dumped). I need to pass the argument but doesn't know where I did wrong. Can someone help me?
This is my code
#include <stdio.h>
#include <pthread.h>
#include <time.h>
#include <unistd.h>
#include <stdlib.h>
struct param_t_p{
int temperature;
int LOWER_TEMP_BOUND,UPPER_TEMP_BOUND;
float pressure;
float LOWER_PRESURE_BOUND,UPPER_PRESURE_BOUND;
};
void timespec_add_us (struct timespec *t, long us)
{
t->tv_nsec += us*1000;
while (t->tv_nsec > 1000000000)
{
t->tv_nsec = t->tv_nsec - 1000000000;// + ms*1000000;
t->tv_sec += 1;
}
}
void *temp (void* args)
{
struct param_t_p *ps = (struct param_t_p *)args;
struct timespec time;
clock_gettime (CLOCK_REALTIME, &time);
while (1)
{
timespec_add_us(&time, 4000000);
clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME,&time, NULL);
ps->temperature = ps->LOWER_TEMP_BOUND + (int)(ps->UPPER_TEMP_BOUND*rand()/(RAND_MAX+1.0));
printf("First thread for temperature is done\n\n");
}
return NULL;
}
void *press (void* args)
{
struct param_t_p *ps = (struct param_t_p *)args;
struct timespec time;
clock_gettime (CLOCK_REALTIME, &time);
while (1)
{
timespec_add_us(&time, 4000000);
clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME,&time, NULL);
ps->pressure = ps->LOWER_PRESURE_BOUND +( int)(ps->UPPER_PRESURE_BOUND*rand()/(RAND_MAX+1.0));
printf("Second thread for temperature is done\n\n");
}
return NULL;
}
void *display (void* args)
{
struct param_t_p *ps = (struct param_t_p *)args;
struct timespec time;
clock_gettime (CLOCK_REALTIME, &time);
while (1)
{
timespec_add_us(&time, 4000000);
clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME,&time, NULL);
printf("Value for Temperature and Pressure\n");
printf(" Temperature : %d°C\n", ps->temperature);
printf(" Pressure : %.2fPa\n", ps->pressure);
printf("Third thread is done\n\n");
}
return NULL;
}
int main()
{
pthread_t th1,th2,th3;
pthread_att_t attr;
struct sched_param param1, param2, param3;
struct param_t_p data;
data.LOWER_TEMP_BOUND=20;
data.UPPER_TEMP_BOUND=40;
data.LOWER_PRESURE_BOUND=31.5;
data.UPPER_PRESURE_BOUND=32.5;
data.temperature;
data.pressure;
printf("Process ID: %d\n\n", getpid());
pthread_attr_setschedpolicy(&attr, SCHED_FIFO);
param1.sched_priority = 1;
param2.sched_priority = 2;
param3.sched_priority = 3;
pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
pthread_attr_setschedparam(&attr, &param1);
pthread_create(&th1, &attr, temp, &data);
pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
pthread_attr_setschedparam(&attr, &param2);
pthread_create(&th2, &attr, press, &data);
pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
pthread_attr_setschedparam(&attr, &param3);
pthread_create(&th3, &attr, display, &data);
pthread_attr_destroy(&attr);
pthread_join(th1, NULL);
pthread_join(th2, NULL);
pthread_join(th3, NULL);
}
I need to solve it as soon as possible. Thank you in advance