X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=builtin-diff-index.c;h=083599d5c4c174cfab7c148428630534e4cd8174;hb=723024d696a47556baac77700e47fef288691f37;hp=95a3db156bda2d1e8d2ad7bdf72a9f9a821c6f51;hpb=3fe5dbf57f2512d29cb72c68bdab98957fda7bb3;p=git.git

diff --git a/builtin-diff-index.c b/builtin-diff-index.c
index 95a3db156..083599d5c 100644
--- a/builtin-diff-index.c
+++ b/builtin-diff-index.c
@@ -38,5 +38,9 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix)
 	if (rev.pending.nr != 1 ||
 	    rev.max_count != -1 || rev.min_age != -1 || rev.max_age != -1)
 		usage(diff_cache_usage);
+	if (read_cache() < 0) {
+		perror("read_cache");
+		return -1;
+	}
 	return run_diff_index(&rev, cached);
 }