Earlier cache_tree_find() needs to be called with a valid cache_tree,
but repeated look-up may find an invalid or missing cache_tree in between.
Help simplify the callers by returning NULL to mean "nothing appropriate
found" when the input is NULL.
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
cache-tree.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/cache-tree.c b/cache-tree.c
index 6dd8411..5481e43 100644
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -514,6 +514,8 @@ struct cache_tree *cache_tree_read(const char *buffer, unsigned long size)
static struct cache_tree *cache_tree_find(struct cache_tree *it, const char *path)
{
+ if (!it)
+ return NULL;
while (*path) {
const char *slash;
struct cache_tree_sub *sub;
--
1.6.3.1.145.gb74d77
--
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