Any other caller of 'repo_read_index' dies upon a negative return of it, so grep should, too. Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx> --- Found while reviewing the series https://public-inbox.org/git/20180514105823.8378-1-ao2@xxxxxx/ builtin/grep.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/builtin/grep.c b/builtin/grep.c index 6e7bc76785a..69f0743619f 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -488,7 +488,8 @@ static int grep_cache(struct grep_opt *opt, struct repository *repo, strbuf_addstr(&name, repo->submodule_prefix); } - repo_read_index(repo); + if (repo_read_index(repo) < 0) + die("index file corrupt"); for (nr = 0; nr < repo->index->cache_nr; nr++) { const struct cache_entry *ce = repo->index->cache[nr]; -- 2.17.0.582.gccdcbd54c44.dirty