linux-kernel - [PATCH 1/7] x86 mmiotrace: fix a rare memory leak.

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Date:	Tue, 16 Sep 2008 21:54:16 +0300
From:	Pekka Paalanen <pq@....fi>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Frédéric Weisbecker <fweisbec@...il.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	"Peter Zijlstra" <a.p.zijlstra@...llo.nl>,
	Pavel Roskin <proski@....org>, pq@....fi
Subject: [PATCH 1/7] x86 mmiotrace: fix a rare memory leak.

>From da74191de5e5a3c0adee0604757d19b2faf8ec79 Mon Sep 17 00:00:00 2001
From: Pekka Paalanen <pq@....fi>
Date: Sat, 23 Aug 2008 14:32:22 +0300
Subject: [PATCH] x86 mmiotrace: fix a rare memory leak.

Signed-off-by: Pekka Paalanen <pq@....fi>
---
 arch/x86/mm/mmio-mod.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c
index 635b50e..754bd1e 100644
--- a/arch/x86/mm/mmio-mod.c
+++ b/arch/x86/mm/mmio-mod.c
@@ -307,8 +307,10 @@ static void ioremap_trace_core(resource_size_t offset, unsigned long size,
 	map.map_id = trace->id;
 
 	spin_lock_irq(&trace_lock);
-	if (!is_enabled())
+	if (!is_enabled()) {
+		kfree(trace);
 		goto not_enabled;
+	}
 
 	mmio_trace_mapping(&map);
 	list_add_tail(&trace->list, &trace_list);
-- 
1.5.6.4

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