git-compat-util: introduce MEMZERO_ARRAY() macro

Introduce a new macro MEMZERO_ARRAY() that zeroes the memory allocated
by ALLOC_ARRAY() and friends. And add coccinelle rule to enforce the use
of this macro.

Signed-off-by: Toon Claes <toon@iotcl.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/hashmap.c b/hashmap.c
index a711377853..3b5d6f14bc 100644
--- a/hashmap.c
+++ b/hashmap.c
@@ -194,7 +194,7 @@ void hashmap_partial_clear_(struct hashmap *map, ssize_t entry_offset)
 		return;
 	if (entry_offset >= 0)  /* called by hashmap_clear_entries */
 		free_individual_entries(map, entry_offset);
-	memset(map->table, 0, map->tablesize * sizeof(struct hashmap_entry *));
+	MEMZERO_ARRAY(map->table, map->tablesize);
 	map->shrink_at = 0;
 	map->private_size = 0;
 }