From: Zhen Lei <thunder.leizhen@huawei.com> stable inclusion from stable-5.10.67 commit f4c7c95e3ee5741439cd11bf67b84a7d07e7c1c1 bugzilla: 182619 https://gitee.com/openeuler/kernel/issues/I4EWO7 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit f728c4a9e8405caae69d4bc1232c54ff57b5d20f ] In error handling branch "if (WARN_ON(node == NUMA_NO_NODE))", the previously allocated memories are not released. Doing this before allocating memory eliminates memory leaks. tj: Note that the condition only occurs when the arch code is pretty broken and the WARN_ON might as well be BUG_ON(). Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Chen Jun <chenjun102@huawei.com> Acked-by: Weilong Chen <chenweilong@huawei.com> Signed-off-by: Chen Jun <chenjun102@huawei.com> --- kernel/workqueue.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 51d19fc71e61..4cb622b2661b 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -5893,6 +5893,13 @@ static void __init wq_numa_init(void) return; } + for_each_possible_cpu(cpu) { + if (WARN_ON(cpu_to_node(cpu) == NUMA_NO_NODE)) { + pr_warn("workqueue: NUMA node mapping not available for cpu%d, disabling NUMA support\n", cpu); + return; + } + } + wq_update_unbound_numa_attrs_buf = alloc_workqueue_attrs(); BUG_ON(!wq_update_unbound_numa_attrs_buf); @@ -5910,11 +5917,6 @@ static void __init wq_numa_init(void) for_each_possible_cpu(cpu) { node = cpu_to_node(cpu); - if (WARN_ON(node == NUMA_NO_NODE)) { - 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; - } cpumask_set_cpu(cpu, tbl[node]); } -- 2.20.1