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-rw-r--r--builtin/ls-files.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/builtin/ls-files.c b/builtin/ls-files.c
index 7f83c9a6f2..670e8fb93c 100644
--- a/builtin/ls-files.c
+++ b/builtin/ls-files.c
@@ -373,7 +373,7 @@ static void prune_index(struct index_state *istate,
first = pos;
last = istate->cache_nr;
while (last > first) {
- int next = (last + first) >> 1;
+ int next = first + ((last - first) >> 1);
const struct cache_entry *ce = istate->cache[next];
if (!strncmp(ce->name, prefix, prefixlen)) {
first = next+1;