linux-kernel - [PATCH 2/8] eCryptfs: Use list_for_each_entry

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Message-ID: <20070719212637.GC13821@halcrow.austin.ibm.com>
Date:	Thu, 19 Jul 2007 16:26:37 -0500
From:	Michael Halcrow <mhalcrow@...ibm.com>
To:	akpm@...ux-foundation.org
Cc:	linux-kernel@...r.kernel.org, tchicks@...ibm.com,
	trevor.highland@...il.com, pregan@...sunysb.edu, toml@...ibm.com,
	sergeh@...ibm.com, mike@...crow.us
Subject: [PATCH 2/8] eCryptfs: Use list_for_each_entry_safe() when wiping auth toks

Use list_for_each_entry_safe() when wiping the authentication token
list.

Signed-off-by: Michael Halcrow <mhalcrow@...ibm.com>
---
 fs/ecryptfs/keystore.c |   15 ++++-----------
 1 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index ef4904a..590f29c 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -469,26 +469,19 @@ out:
 
 static void wipe_auth_tok_list(struct list_head *auth_tok_list_head)
 {
-	struct list_head *walker;
 	struct ecryptfs_auth_tok_list_item *auth_tok_list_item;
+	struct ecryptfs_auth_tok_list_item *auth_tok_list_item_tmp;
 
-	walker = auth_tok_list_head->next;
-	while (walker != auth_tok_list_head) {
-		auth_tok_list_item =
-		    list_entry(walker, struct ecryptfs_auth_tok_list_item,
-			       list);
-		walker = auth_tok_list_item->list.next;
-		memset(auth_tok_list_item, 0,
-		       sizeof(struct ecryptfs_auth_tok_list_item));
+	list_for_each_entry_safe(auth_tok_list_item, auth_tok_list_item_tmp,
+				 auth_tok_list_head, list) {
+		list_del(&auth_tok_list_item->list);
 		kmem_cache_free(ecryptfs_auth_tok_list_item_cache,
 				auth_tok_list_item);
 	}
-	auth_tok_list_head->next = NULL;
 }
 
 struct kmem_cache *ecryptfs_auth_tok_list_item_cache;
 
-
 /**
  * parse_tag_1_packet
  * @crypt_stat: The cryptographic context to modify based on packet
-- 
1.4.4.4

-
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