*: Add a hash_clean_and_free() function

Add a hash_clean_and_free() function as well as convert
the code to use it.  This function also takes a double
pointer to the hash to set it NULL.  Also it cleanly
does nothing if the pointer is NULL( as a bunch of
code tested for ).

Signed-off-by: Donald Sharp <sharpd@nvidia.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/vrrpd/vrrp.c b/vrrpd/vrrp.c
index 5bb1d6911c..1d934f616b 100644
--- a/vrrpd/vrrp.c
+++ b/vrrpd/vrrp.c
@@ -2411,6 +2411,5 @@ void vrrp_fini(void)
 
 	list_delete(&vrs);
 
-	hash_clean(vrrp_vrouters_hash, NULL);
-	hash_free(vrrp_vrouters_hash);
+	hash_clean_and_free(&vrrp_vrouters_hash, NULL);
 }