kconfig: add xstrdup() helper
We already have xmalloc(), xcalloc(), and xrealloc((). Add xstrdup()
as well to save tedious error handling.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 5c12dc9..df26c7b 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -178,7 +178,7 @@ static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
case S_HEX:
done:
if (sym_string_valid(sym, p)) {
- sym->def[def].val = strdup(p);
+ sym->def[def].val = xstrdup(p);
sym->flags |= def_flags;
} else {
if (def != S_DEF_AUTO)