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Message-Id: <20210405085023.844841327@linuxfoundation.org>
Date: Mon, 5 Apr 2021 10:54:12 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Dinghao Liu <dinghao.liu@....edu.cn>,
Chanwoo Choi <cw00.choi@...sung.com>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 41/56] extcon: Fix error handling in extcon_dev_register
From: Dinghao Liu <dinghao.liu@....edu.cn>
[ Upstream commit d3bdd1c3140724967ca4136755538fa7c05c2b4e ]
When devm_kcalloc() fails, we should execute device_unregister()
to unregister edev->dev from system.
Fixes: 046050f6e623e ("extcon: Update the prototype of extcon_register_notifier() with enum extcon")
Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/extcon/extcon.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index b9d27c8fe57e..e70f21ae85ff 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -1256,6 +1256,7 @@ int extcon_dev_register(struct extcon_dev *edev)
sizeof(*edev->nh), GFP_KERNEL);
if (!edev->nh) {
ret = -ENOMEM;
+ device_unregister(&edev->dev);
goto err_dev;
}
--
2.30.2
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