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From: wanghaibin <wanghaibin.wang@huawei.com>
To: <linux-kernel@vger.kernel.org>
Cc: <tj@kernel.org>, <jiangshanlai@gmail.com>,
	<peter.huangpeng@huawei.com>,
	wanghaibin <wanghaibin.wang@huawei.com>
Subject: [RFC PATCH 2/4] workqueue: free the allocated memory resource when wq_numa_init failed.
Date: Thu, 7 Jan 2016 20:38:57 +0800	[thread overview]
Message-ID: <1452170339-26748-3-git-send-email-wanghaibin.wang@huawei.com> (raw)
In-Reply-To: <1452170339-26748-1-git-send-email-wanghaibin.wang@huawei.com>

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@huawei.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



  parent reply	other threads:[~2016-01-07 12:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-07 12:38 [RFC PATCH 0/4] fixs/suggestions for workqueue subsystem wanghaibin
2016-01-07 12:38 ` [RFC PATCH 1/4] workqueue: move the wq_update_unbound_numa_attrs_buf allocation location wanghaibin
2016-01-07 15:48   ` Tejun Heo
2016-01-11  5:21     ` wanghaibin
2016-01-07 12:38 ` wanghaibin [this message]
2016-01-07 15:50   ` [RFC PATCH 2/4] workqueue: free the allocated memory resource when wq_numa_init failed Tejun Heo
2016-01-11  4:26     ` wanghaibin
2016-01-07 12:38 ` [RFC PATCH 3/4] workqueue: remove the unbind workqueue attr sys_file before unregister the workqueue device wanghaibin
2016-01-07 16:00   ` Tejun Heo
2016-01-11 12:23     ` wanghaibin
2016-01-07 12:38 ` [RFC PATCH 4/4] workqueue: simplify the apply_workqueue_attrs_locked function wanghaibin
2016-01-07 16:07   ` Tejun Heo

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