selinux: avtab_init() and cond_policydb_init() return void

The avtab_init() and cond_policydb_init() functions always return
zero so mark them as returning void and update the callers not to
check for a return value.

Suggested-by: Stephen Smalley <stephen.smalley.work@gmail.com>
Reviewed-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

security/selinux/ss/avtab.c

@@ -299,12 +299,11 @@ void avtab_destroy(struct avtab *h)
 	h->mask = 0;
 }
 
-int avtab_init(struct avtab *h)
+void avtab_init(struct avtab *h)
 {
 	kvfree(h->htable);
 	h->htable = NULL;
 	h->nel = 0;
-	return 0;
 }
 
 int avtab_alloc(struct avtab *h, u32 nrules)

security/selinux/ss/avtab.h

@@ -87,7 +87,7 @@ struct avtab {
 	u32 mask;       /* mask to compute hash func */
 };
 
-int avtab_init(struct avtab *);
+void avtab_init(struct avtab *h);
 int avtab_alloc(struct avtab *, u32);
 struct avtab_datum *avtab_search(struct avtab *h, struct avtab_key *k);
 void avtab_destroy(struct avtab *h);

security/selinux/ss/conditional.c

@@ -125,19 +125,13 @@ void evaluate_cond_nodes(struct policydb *p)
 		evaluate_cond_node(p, &p->cond_list[i]);
 }
 
-int cond_policydb_init(struct policydb *p)
+void cond_policydb_init(struct policydb *p)
 {
-	int rc;
-
 	p->bool_val_to_struct = NULL;
 	p->cond_list = NULL;
 	p->cond_list_len = 0;
 
-	rc = avtab_init(&p->te_cond_avtab);
-	if (rc)
-		return rc;
-
-	return 0;
+	avtab_init(&p->te_cond_avtab);
 }
 
 static void cond_node_destroy(struct cond_node *node)

security/selinux/ss/conditional.h

@@ -61,7 +61,7 @@ struct cond_node {
 	struct cond_av_list false_list;
 };
 
-int cond_policydb_init(struct policydb *p);
+void cond_policydb_init(struct policydb *p);
 void cond_policydb_destroy(struct policydb *p);
 
 int cond_init_bool_indexes(struct policydb *p);

security/selinux/ss/policydb.c

@@ -463,17 +463,10 @@ static int rangetr_cmp(struct hashtab *h, const void *k1, const void *k2)
  */
 static int policydb_init(struct policydb *p)
 {
-	int rc;
-
 	memset(p, 0, sizeof(*p));
 
-	rc = avtab_init(&p->te_avtab);
-	if (rc)
-		return rc;
-
-	rc = cond_policydb_init(p);
-	if (rc)
-		return rc;
+	avtab_init(&p->te_avtab);
+	cond_policydb_init(p);
 
 	p->filename_trans = hashtab_create(filenametr_hash, filenametr_cmp,
 					   (1 << 11));