prepare_revision_walk(): check for return value in all places

diff --git a/builtin/commit.c b/builtin/commit.c
index 39cf8976e3933a3d5310098896feaf674dedc12b..447ded63fd09b346ae5c1a0c6008dd196d6fd99e 100644 (file)
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -989,7 +989,8 @@ static const char *find_author_by_nickname(const char *name)
        revs.mailmap = &mailmap;
        read_mailmap(revs.mailmap, NULL);
 
-       prepare_revision_walk(&revs);
+       if (prepare_revision_walk(&revs))
+               die(_("revision walk setup failed"));
        commit = get_revision(&revs);
        if (commit) {
                struct pretty_print_context ctx = {0};