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From: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
To: netfilter-devel@lists.netfilter.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 2.6.20 14/14] nfnetlink_log: micro-optimization: inst->skb != NULL in __nfulnl_send()
Date: Mon, 12 Feb 2007 21:23:19 +0100	[thread overview]
Message-ID: <20070212202319.GE28704@rere.qmqm.pl> (raw)
In-Reply-To: <20070212202052.GA28704@rere.qmqm.pl>

No other function calls __nfulnl_send() with inst->skb == NULL than nfulnl_timer().

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>

--- linux-2.6.20/net/netfilter/nfnetlink_log.c.12	2007-02-12 17:58:01.000000000 +0100
+++ linux-2.6.20/net/netfilter/nfnetlink_log.c	2007-02-12 17:58:56.000000000 +0100
@@ -375,9 +375,6 @@ __nfulnl_send(struct nfulnl_instance *in
 {
 	int status;
 
-	if (!inst->skb)
-		return 0;
-
 	if (inst->qlen > 1)
 		inst->lastnlh->nlmsg_type = NLMSG_DONE;
 
@@ -403,7 +400,8 @@ static void nfulnl_timer(unsigned long d
 	spin_lock_bh(&inst->lock);
 	if (timer_pending(&inst->timer))	/* is it always true or false here? */
 		del_timer(&inst->timer);
-	__nfulnl_send(inst);
+	if (inst->skb)
+		__nfulnl_send(inst);
 	spin_unlock_bh(&inst->lock);
 	instance_put(inst);
 }

  parent reply	other threads:[~2007-02-12 20:23 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-12  0:37 [PATCH 2.6.20 00/10] nfnetlink_log: patch series introduction Michał Mirosław
2007-02-12 20:20 ` [PATCH 2.6.20 +0/14] nfnetlink_log: patch series season 2 Michał Mirosław
2007-02-12 20:22   ` [PATCH 2.6.20 11/14] nfnetlink_log: iterator functions need iter_state * only Michał Mirosław
2007-02-13 12:51     ` Patrick McHardy
2007-02-12 20:22   ` [PATCH 2.6.20 12/14] nfnetlink_log: possible NULL pointer dereference in nfulnl_recv_config() Michał Mirosław
2007-02-13 12:55     ` Patrick McHardy
2007-02-12 20:22   ` [PATCH 2.6.20 13/14] nfnetlink_log: fix reference counting Michał Mirosław
2007-02-13 12:58     ` Patrick McHardy
2007-02-14 11:38       ` Michał Mirosław
2007-02-12 20:23   ` Michał Mirosław [this message]
2007-02-14 11:57     ` [PATCH 2.6.20 14/14] nfnetlink_log: micro-optimization: inst->skb != NULL in __nfulnl_send() Michał Mirosław

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