Remove even elements from a simply linked list

I'm making a function to remove ALL pairs from a list that is simply chained, but when I run the system, only one element is removed each time I call the function. Ex: Elements = {2, 4, 5, 3}, if I call the function, it deletes element 4, and after I call again, it clears 2. Does anyone know how to do this function delete all even elements at once?

int remover_pares(struct no **c){
struct no *p, *q;
if(*c==NULL){
    printf("LISTA VAZIA");
    return 0;
}
else{
    p=*c;
    q=*c;
    for(p=*c;p!=NULL;p=p->prox){
        if(p->dado%2==0){
            if(p==*c){
                *c=(*c)->prox;
                free(p);
                return 1;
            }else{
                q->prox=p->prox;
                free(p);
                return 1;
            }
        }
    }
}

}