linux kernel module processes states

#include <linux/module.h>   /* Needed by all modules */
#include <linux/kernel.h>   /* Needed for KERN_INFO */
#include <linux/init.h>     /* Needed for the macros */
#include <linux/moduleparam.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/unistd.h>

int *arry[1000];
int i=0;
int level=0;

static char *md="-n";

module_param(md,charp,0000);
MODULE_PARM_DESC(md,"parametre");

void recursion(struct task_struct *t){
    level++;
    struct task_struct *t2;
    bool isFound=false;
    int k,l;
    for_each_process(t2){
        if(t2->parent==t){
            for(k=0;k<1000;k++){
                if(!strcmp(arry[k],t2->state)){
                    isFound=true;
                    break;
                }
            }
            if(isFound==false){
                for(l=0;l<level;l++){
                    printk("    ");
                }
                printk(KERN_INFO "%s",t2->state);
                if(!strcmp(md,"-p"))
                    printk(KERN_INFO "(%d)\n",t2->pid);
                else
                    printk("\n");
                arry[i]=t2->state;
                i++;
                recursion(t2);
            }
            isFound=false;
        }
    }
    level--;
}

static int __init project4_init(void)
{
struct task_struct *t;

    int j;
    bool isFound=false;
    for(j=0;j<1000;j++){
        arry[j]="*******";
    }

    for_each_process(t){
        for(j=0;j<1000;j++){
            if(!strcmp(arry[j],t->state)){
                isFound=true;
                break;
            }
        }
        if(isFound==false){
            arry[i]=t->state;
            i++;
            printk(KERN_INFO "%ld",t->state);
                if(!strcmp(md,"-p"))
                    printk(KERN_INFO "(%d)\n",t->pid);
                else
                    printk("\n");
            recursion(t);
        }
        isFound=false;
    }

    return 0;
}
static void __exit project4_exit(void)
{
    printk(KERN_INFO "Goodbye, world 2\n");
}

module_init(project4_init);

module_exit(project4_exit);