From: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
To: <dan.j.williams@intel.com>
Cc: <vishal.l.verma@intel.com>, <dave.jiang@intel.com>,
<ira.weiny@intel.com>, <nvdimm@lists.linux.dev>,
<linux-kernel@vger.kernel.org>, <yusongping@huawei.com>,
<artem.kuzin@huawei.com>
Subject: [PATCH] drivers: nvdimm: fix memleak
Date: Thu, 17 Aug 2023 19:59:45 +0800 [thread overview]
Message-ID: <20230817115945.771826-1-konstantin.meskhidze@huawei.com> (raw)
Memory pointed by 'nd_pmu->pmu.attr_groups' is allocated in function
'register_nvdimm_pmu' and is lost after 'kfree(nd_pmu)' call in function
'unregister_nvdimm_pmu'.
Co-developed-by: Ivanov Mikhail <ivanov.mikhail1@huawei-partners.com>
Signed-off-by: Konstantin Meskhidze <konstantin.meskhidze@huawei.com>
---
drivers/nvdimm/nd_perf.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/nvdimm/nd_perf.c b/drivers/nvdimm/nd_perf.c
index 433bbb68a..14881c4e0 100644
--- a/drivers/nvdimm/nd_perf.c
+++ b/drivers/nvdimm/nd_perf.c
@@ -323,7 +323,8 @@ EXPORT_SYMBOL_GPL(register_nvdimm_pmu);
void unregister_nvdimm_pmu(struct nvdimm_pmu *nd_pmu)
{
perf_pmu_unregister(&nd_pmu->pmu);
nvdimm_pmu_free_hotplug_memory(nd_pmu);
+ kfree(nd_pmu->pmu.attr_groups);
kfree(nd_pmu);
}
EXPORT_SYMBOL_GPL(unregister_nvdimm_pmu);
--
2.34.1
next reply other threads:[~2023-08-17 11:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-17 11:59 Konstantin Meskhidze [this message]
2023-08-17 14:32 ` [PATCH] drivers: nvdimm: fix memleak Jeff Moyer
2023-08-17 15:06 ` Dan Williams
2023-08-17 16:00 ` Dave Jiang
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