[PATCH v3 17/17] sequencer: ensure to release the lock when we could not read the index

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A future caller of read_and_refresh_cache() may want to do more than just
print some helpful advice in case of failure.

Suggested by Junio Hamano.

Signed-off-by: Johannes Schindelin <johannes.schindelin@xxxxxx>
---
 sequencer.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/sequencer.c b/sequencer.c
index d92a632..eec8a60 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -644,14 +644,18 @@ static int read_and_refresh_cache(struct replay_opts *opts)
 {
 	static struct lock_file index_lock;
 	int index_fd = hold_locked_index(&index_lock, 0);
-	if (read_index_preload(&the_index, NULL) < 0)
+	if (read_index_preload(&the_index, NULL) < 0) {
+		rollback_lock_file(&index_lock);
 		return error(_("git %s: failed to read the index"),
 			action_name(opts));
+	}
 	refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED, NULL, NULL, NULL);
 	if (the_index.cache_changed && index_fd >= 0) {
-		if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK))
+		if (write_locked_index(&the_index, &index_lock, COMMIT_LOCK)) {
+			rollback_lock_file(&index_lock);
 			return error(_("git %s: failed to refresh the index"),
 				action_name(opts));
+		}
 	}
 	rollback_lock_file(&index_lock);
 	return 0;
-- 
2.10.0.windows.1.10.g803177d



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