From bbae70932eee27c56d14935a17900eb8dedb7560 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Wed, 27 Nov 2019 16:35:33 +0800
Subject: [PATCH] RAS/CEC: Fix potential memory leak

mainline inclusion
from mainline-5.2-rc3
commit d0e375e8f26e
category: bugfix
bugzilla: 17618
CVE: NA

-------------------------------------------------

Free the array page if a failure is encountered while creating the
debugfs nodes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
---
 drivers/ras/cec.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c
index 5d2b2c02cbbe..dbea02b9edf4 100644
--- a/drivers/ras/cec.c
+++ b/drivers/ras/cec.c
@@ -511,8 +511,10 @@ void __init cec_init(void)
 		return;
 	}
 
-	if (create_debugfs_nodes())
+	if (create_debugfs_nodes()) {
+		free_page((unsigned long)ce_arr.array);
 		return;
+	}
 
 	INIT_DELAYED_WORK(&cec_work, cec_work_fn);
 	schedule_delayed_work(&cec_work, CEC_DECAY_DEFAULT_INTERVAL);
-- 
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