From: Geliang Tang <geliangtang@163.com>
Date: Mon, 16 Nov 2015 14:37:14 +0000 (+0800)
Subject: crypto: api - use list_first_entry_or_null and list_next_entry
X-Git-Tag: v4.14-rc1~4048^2~83
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=304e4818d4a45e83019ea30e4cfcb3ac2a8ce09a;p=platform%2Fkernel%2Flinux-rpi.git

crypto: api - use list_first_entry_or_null and list_next_entry

Simplify crypto_more_spawns() with list_first_entry_or_null()
and list_next_entry().

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/crypto/algapi.c b/crypto/algapi.c
index 59bf491..7be76aa 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -93,16 +93,15 @@ static struct list_head *crypto_more_spawns(struct crypto_alg *alg,
 {
 	struct crypto_spawn *spawn, *n;
 
-	if (list_empty(stack))
+	spawn = list_first_entry_or_null(stack, struct crypto_spawn, list);
+	if (!spawn)
 		return NULL;
 
-	spawn = list_first_entry(stack, struct crypto_spawn, list);
-	n = list_entry(spawn->list.next, struct crypto_spawn, list);
+	n = list_next_entry(spawn, list);
 
 	if (spawn->alg && &n->list != stack && !n->alg)
 		n->alg = (n->list.next == stack) ? alg :
-			 &list_entry(n->list.next, struct crypto_spawn,
-				     list)->inst->alg;
+			 &list_next_entry(n, list)->inst->alg;
 
 	list_move(&spawn->list, secondary_spawns);