kconfig: remove const qualifier from sym_expand_string_value()

This function returns realloc'ed memory, so the returned pointer
must be passed to free() when done.  So, 'const' qualifier is odd.
It is allowed to modify the expanded string.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>

diff --git a/config/lkc_proto.h b/config/lkc_proto.h
index 5d86e2dfae59da1cc187dbd579b74757075f2280..9dc8abfb1dc3cf1aa6d6753940c909e1dd4ec889 100644 (file)
--- a/config/lkc_proto.h
+++ b/config/lkc_proto.h
@@ -31,7 +31,7 @@ extern struct symbol * symbol_hash[SYMBOL_HASHSIZE];
 
 struct symbol * sym_lookup(const char *name, int flags);
 struct symbol * sym_find(const char *name);
-const char * sym_expand_string_value(const char *in);
+char *sym_expand_string_value(const char *in);
 const char * sym_escape_string_value(const char *in);
 struct symbol ** sym_re_search(const char *pattern);
 const char * sym_type_name(enum symbol_type type);

diff --git a/config/symbol.c b/config/symbol.c
index 60a76f958f334e2a52bc38e3dbb7a87454a8b023..cca9663be5ddd918703d534ef95368ccc44db322 100644 (file)
--- a/config/symbol.c
+++ b/config/symbol.c
@@ -899,7 +899,7 @@ struct symbol *sym_find(const char *name)
  * name to be expanded shall be prefixed by a '$'. Unknown symbol expands to
  * the empty string.
  */
-const char *sym_expand_string_value(const char *in)
+char *sym_expand_string_value(const char *in)
 {
        const char *src;
        char *res;

diff --git a/config/util.c b/config/util.c
index 138894ef49ea18545468de9b1021c58505d36454..b98a79e30e04a4017bd33264e85b2c40e46bc3af 100644 (file)
--- a/config/util.c
+++ b/config/util.c
@@ -14,11 +14,11 @@
 struct file *file_lookup(const char *name)
 {
        struct file *file;
-       const char *file_name = sym_expand_string_value(name);
+       char *file_name = sym_expand_string_value(name);
 
        for (file = file_list; file; file = file->next) {
                if (!strcmp(name, file->name)) {
-                       free((void *)file_name);
+                       free(file_name);
                        return file;
                }
        }