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refs/files: fix NULL pointer deref when releasing ref store 

The `free_ref_cache()` function is not `NULL` safe and will thus
segfault when being passed such a pointer. This can easily happen when
trying to release a partially initialized "files" ref store. Fix this.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Patrick Steinhardt 2024-06-06 07:29:25 +02:00 committed by Junio C Hamano
parent 120b67172f
commit b3e098d6e7
1 changed files with 2 additions and 0 deletions
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refs/ref-cache.c
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@ -71,6 +71,8 @@ static void free_ref_entry(struct ref_entry *entry)


void free_ref_cache(struct ref_cache *cache) void free_ref_cache(struct ref_cache *cache)
{ {
if (!cache)
return;
free_ref_entry(cache->root); free_ref_entry(cache->root);
free(cache); free(cache);
} }