cast variable in call to free() in builtin/diff.c and submodule.c

Both of these free() calls are freeing a "const unsigned char (*)[20]"
type while free() expects a "void *". This results in the following
warning under clang 2.9:

    builtin/diff.c:185:7: warning: passing 'const unsigned char (*)[20]' to parameter of type 'void *' discards qualifiers
            free(parent);
                 ^~~~~~

    submodule.c:394:7: warning: passing 'const unsigned char (*)[20]' to parameter of type 'void *' discards qualifiers
            free(parents);
                 ^~~~~~~

This free()-ing without a cast was added by Jim Meyering to
builtin/diff.c in v1.7.6-rc3~4 and later by Fredrik Gustafsson in
submodule.c in v1.7.7-rc1~25^2.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/diff.c b/builtin/diff.c
index 1118689fb246b864ce758039543327c4304cdaa4..0fe638fc45c780e53901b8be22d3b4d715be3c30 100644 (file)
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -182,7 +182,7 @@ static int builtin_diff_combined(struct rev_info *revs,
                hashcpy((unsigned char *)(parent + i), ent[i].item->sha1);
        diff_tree_combined(parent[0], parent + 1, ents - 1,
                           revs->dense_combined_merges, revs);
-       free(parent);
+       free((void *)parent);
        return 0;
 }
 

diff --git a/submodule.c b/submodule.c
index ad86534ba1e1e1726fd6427c65182ba954957904..09181ff6e575d5aa5e2fa850bc794fac5953587d 100644 (file)
--- a/submodule.c
+++ b/submodule.c
@@ -385,7 +385,7 @@ static void commit_need_pushing(struct commit *commit, struct commit_list *paren
        rev.diffopt.format_callback_data = needs_pushing;
        diff_tree_combined(commit->object.sha1, parents, n, 1, &rev);
 
-       free(parents);
+       free((void *)parents);
 }
 
 int check_submodule_needs_pushing(unsigned char new_sha1[20], const char *remotes_name)