linux-kernel - [PATCH] cxl/region: Fix cxlr

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Date: Sun, 28 Apr 2024 11:07:48 +0800
From: Li Zhijian <lizhijian@...itsu.com>
To: dave@...olabs.net,
	jonathan.cameron@...wei.com,
	dave.jiang@...el.com,
	alison.schofield@...el.com,
	vishal.l.verma@...el.com,
	ira.weiny@...el.com,
	dan.j.williams@...el.com,
	linux-cxl@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	Li Zhijian <lizhijian@...itsu.com>
Subject: [PATCH] cxl/region: Fix cxlr_pmem leaks

Before this error path, cxlr_pmem pointed to a kzalloc() memory, free
it to avoid this memory leaking.

Fixes: f17b558d6663 ("cxl/pmem: Refactor nvdimm device registration, delete the workqueue")
Signed-off-by: Li Zhijian <lizhijian@...itsu.com>
---
 drivers/cxl/core/region.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c
index 5c186e0a39b9..812b2948b6c6 100644
--- a/drivers/cxl/core/region.c
+++ b/drivers/cxl/core/region.c
@@ -2719,6 +2719,7 @@ static struct cxl_pmem_region *cxl_pmem_region_alloc(struct cxl_region *cxlr)
 		if (i == 0) {
 			cxl_nvb = cxl_find_nvdimm_bridge(cxlmd);
 			if (!cxl_nvb) {
+				kfree(cxlr_pmem);
 				cxlr_pmem = ERR_PTR(-ENODEV);
 				goto out;
 			}
-- 
2.29.2