linux-kernel - [RFC PATCH 2/4] workqueue: free the allocated memory resource when wq_numa

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Message-ID: <1452170339-26748-3-git-send-email-wanghaibin.wang@huawei.com>
Date:	Thu, 7 Jan 2016 20:38:57 +0800
From:	wanghaibin <wanghaibin.wang@...wei.com>
To:	<linux-kernel@...r.kernel.org>
CC:	<tj@...nel.org>, <jiangshanlai@...il.com>,
	<peter.huangpeng@...wei.com>,
	wanghaibin <wanghaibin.wang@...wei.com>
Subject: [RFC PATCH 2/4] workqueue: free the allocated memory resource when wq_numa_init failed.

Before the return that wq_numa_init failed, it will be bettet to free
the numa node table to avoid the memory leaks.

Signed-off-by: wanghaibin <wanghaibin.wang@...wei.com>
---
 kernel/workqueue.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index d6cbe3d..60e192c 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -5195,6 +5195,10 @@ static void __init wq_numa_init(void)
 	for_each_possible_cpu(cpu) {
 		node = cpu_to_node(cpu);
 		if (WARN_ON(node == NUMA_NO_NODE)) {
+			for_each_node(node)
+				free_cpumask_var(tbl[node]);
+			kfree(tbl);
+
 			pr_warn("workqueue: NUMA node mapping not available for cpu%d, disabling NUMA support\n", cpu);
 			/* happens iff arch is bonkers, let's just proceed */
 			return;
-- 
1.8.3.1


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