kconfig: use calloc() for expr allocation

Signed-off-by: Arnaud Lacombe <lacombar@gmail.com>

diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index 792c62ed9d636b814df013fcc2557b6f3e47a383..290ce41f8ba46fcee2d61b6d7f3bd157593f4b66 100644 (file)
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -13,8 +13,7 @@
 
 struct expr *expr_alloc_symbol(struct symbol *sym)
 {
-       struct expr *e = malloc(sizeof(*e));
-       memset(e, 0, sizeof(*e));
+       struct expr *e = calloc(1, sizeof(*e));
        e->type = E_SYMBOL;
        e->left.sym = sym;
        return e;
@@ -22,8 +21,7 @@ struct expr *expr_alloc_symbol(struct symbol *sym)
 
 struct expr *expr_alloc_one(enum expr_type type, struct expr *ce)
 {
-       struct expr *e = malloc(sizeof(*e));
-       memset(e, 0, sizeof(*e));
+       struct expr *e = calloc(1, sizeof(*e));
        e->type = type;
        e->left.expr = ce;
        return e;
@@ -31,8 +29,7 @@ struct expr *expr_alloc_one(enum expr_type type, struct expr *ce)
 
 struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2)
 {
-       struct expr *e = malloc(sizeof(*e));
-       memset(e, 0, sizeof(*e));
+       struct expr *e = calloc(1, sizeof(*e));
        e->type = type;
        e->left.expr = e1;
        e->right.expr = e2;
@@ -41,8 +38,7 @@ struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e
 
 struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2)
 {
-       struct expr *e = malloc(sizeof(*e));
-       memset(e, 0, sizeof(*e));
+       struct expr *e = calloc(1, sizeof(*e));
        e->type = type;
        e->left.sym = s1;
        e->right.sym = s2;