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-rw-r--r--builtin/index-pack.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/builtin/index-pack.c b/builtin/index-pack.c
index 197c51912d..4ff567db47 100644
--- a/builtin/index-pack.c
+++ b/builtin/index-pack.c
@@ -810,6 +810,8 @@ static void sha1_object(const void *data, struct object_entry *obj_entry,
unsigned long has_size;
read_lock();
has_type = sha1_object_info(sha1, &has_size);
+ if (has_type < 0)
+ die(_("cannot read existing object info %s"), sha1_to_hex(sha1));
if (has_type != type || has_size != size)
die(_("SHA1 COLLISION FOUND WITH %s !"), sha1_to_hex(sha1));
has_data = read_sha1_file(sha1, &has_type, &has_size);