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-rw-r--r--sha1_name.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sha1_name.c b/sha1_name.c
index 06409a3845..73a915ff1b 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -510,7 +510,8 @@ const char *find_unique_abbrev(const unsigned char *sha1, int len)
{
static int bufno;
static char hexbuffer[4][GIT_SHA1_HEXSZ + 1];
- char *hex = hexbuffer[3 & ++bufno];
+ char *hex = hexbuffer[bufno];
+ bufno = (bufno + 1) % ARRAY_SIZE(hexbuffer);
find_unique_abbrev_r(hex, sha1, len);
return hex;
}