[iptables PATCH 06/18] nft: Use nft_chain_find() in two more places

[Phil Sutter <phil@nwl.cc>]

This doesn't really increase functions' readability but prepares for
later changes.

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 iptables/nft.c | 29 ++++++++++++++---------------
 1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/iptables/nft.c b/iptables/nft.c
index c6cfecda1846a..cc1260dc627d0 100644
--- a/iptables/nft.c
+++ b/iptables/nft.c
@@ -1678,20 +1678,13 @@ int nft_rule_flush(struct nft_handle *h, const char *chain, const char *table,
 
 	nft_fn = nft_rule_flush;
 
-	if (chain || verbose) {
+	if (chain || verbose)
 		nft_xt_builtin_init(h, table);
-
-		list = nft_chain_list_get(h, table, chain);
-		if (list == NULL) {
-			ret = 1;
-			goto err;
-		}
-	} else if (!nft_table_find(h, table)) {
+	else if (!nft_table_find(h, table))
 		return 1;
-	}
 
 	if (chain) {
-		c = nftnl_chain_list_lookup_byname(list, chain);
+		c = nft_chain_find(h, table, chain);
 		if (!c) {
 			errno = ENOENT;
 			return 0;
@@ -1705,6 +1698,12 @@ int nft_rule_flush(struct nft_handle *h, const char *chain, const char *table,
 		return 1;
 	}
 
+	list = nft_chain_list_get(h, table, chain);
+	if (list == NULL) {
+		ret = 1;
+		goto err;
+	}
+
 	iter = nftnl_chain_list_iter_create(list);
 	if (iter == NULL) {
 		ret = 1;
@@ -2437,12 +2436,8 @@ int nft_rule_list(struct nft_handle *h, const char *chain, const char *table,
 	nft_xt_builtin_init(h, table);
 	nft_assert_table_compatible(h, table, chain);
 
-	list = nft_chain_list_get(h, table, chain);
-	if (!list)
-		return 0;
-
 	if (chain) {
-		c = nftnl_chain_list_lookup_byname(list, chain);
+		c = nft_chain_find(h, table, chain);
 		if (!c)
 			return 0;
 
@@ -2455,6 +2450,10 @@ int nft_rule_list(struct nft_handle *h, const char *chain, const char *table,
 		return 1;
 	}
 
+	list = nft_chain_list_get(h, table, chain);
+	if (!list)
+		return 0;
+
 	iter = nftnl_chain_list_iter_create(list);
 	if (iter == NULL)
 		return 0;
-- 
2.27.0