midx: double-check large object write loop

diff --git a/builtin/commit.c b/builtin/commit.c
index 4d7754ca43515575730b10c6c40bbc6234424e06..500f793fa6947f6309ce4ea82d15410e35b2ff20 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -161,6 +161,9 @@ static int opt_parse_m(const struct option *opt, const char *arg, int unset)
 static int opt_parse_rename_score(const struct option *opt, const char *arg, int unset)
 {
        const char **value = opt->value;
+
+       BUG_ON_OPT_NEG(unset);
+
        if (arg != NULL && *arg == '=')
                arg = arg + 1;