prepare_revision_walk(): check for return value in all places
Even the documentation tells us:
You should check if it returns any error (non-zero return
code) and if it does not, you can start using get_revision()
to do the iteration.
In preparation for this commit, I grepped all occurrences of
prepare_revision_walk and added error messages, when there were none.
Signed-off-by: Stefan Beller <stefanbeller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/commit.c b/builtin/commit.c
index 39cf897..447ded6 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -989,7 +989,8 @@
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};
