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Diffstat (limited to 'sha1_name.c')
-rw-r--r--sha1_name.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/sha1_name.c b/sha1_name.c
index 5fe8e5d..c5a05fa 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -193,7 +193,7 @@ const char *find_unique_abbrev(const unsigned char *sha1, int len)
is_null = !memcmp(sha1, null_sha1, 20);
memcpy(hex, sha1_to_hex(sha1), 40);
- if (len == 40)
+ if (len == 40 || !len)
return hex;
while (len < 40) {
unsigned char sha1_ret[20];