netdev - [PATCH 08/11] crypto: pass crypto_user module to netlink_dump

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Date:	Wed, 26 Sep 2012 12:52:17 +0800
From:	Gao feng <gaofeng@...fujitsu.com>
To:	davem@...emloft.net
Cc:	netfilter-devel@...r.kernel.org, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org, eric.dumazet@...il.com,
	pablo@...filter.org, steffen.klassert@...unet.com,
	linux-crypto@...r.kernel.org, jengelh@...i.de,
	stephen.hemminger@...tta.com, Gao feng <gaofeng@...fujitsu.com>,
	Herbert Xu <herbert@...dor.apana.org.au>
Subject: [PATCH 08/11] crypto: pass crypto_user module to netlink_dump_start

use proper netlink_dump_control.done and .module to avoid panic.

Signed-off-by: Gao feng <gaofeng@...fujitsu.com>
Cc: Herbert Xu <herbert@...dor.apana.org.au>
---
 crypto/crypto_user.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/crypto/crypto_user.c b/crypto/crypto_user.c
index ba2c611..b5cb32b 100644
--- a/crypto/crypto_user.c
+++ b/crypto/crypto_user.c
@@ -249,6 +249,7 @@ out_err:
 
 static int crypto_dump_report_done(struct netlink_callback *cb)
 {
+	netlink_dump_done(cb);
 	return 0;
 }
 
@@ -430,13 +431,15 @@ static struct crypto_link {
 	int (*doit)(struct sk_buff *, struct nlmsghdr *, struct nlattr **);
 	int (*dump)(struct sk_buff *, struct netlink_callback *);
 	int (*done)(struct netlink_callback *);
+	struct module *module;
 } crypto_dispatch[CRYPTO_NR_MSGTYPES] = {
 	[CRYPTO_MSG_NEWALG	- CRYPTO_MSG_BASE] = { .doit = crypto_add_alg},
 	[CRYPTO_MSG_DELALG	- CRYPTO_MSG_BASE] = { .doit = crypto_del_alg},
 	[CRYPTO_MSG_UPDATEALG	- CRYPTO_MSG_BASE] = { .doit = crypto_update_alg},
 	[CRYPTO_MSG_GETALG	- CRYPTO_MSG_BASE] = { .doit = crypto_report,
 						       .dump = crypto_dump_report,
-						       .done = crypto_dump_report_done},
+						       .done = crypto_dump_report_done,
+						       .module = THIS_MODULE},
 };
 
 static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
@@ -470,6 +473,7 @@ static int crypto_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 			struct netlink_dump_control c = {
 				.dump = link->dump,
 				.done = link->done,
+				.module = link->module,
 				.min_dump_alloc = dump_alloc,
 			};
 			return netlink_dump_start(crypto_nlsk, skb, nlh, &c);
-- 
1.7.7.6

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