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extcon: Fix error handling in extcon_dev_register

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[ 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@zju.edu.cn>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dinghao Liu 2021-01-19 16:10:55 +08:00 committed by Greg Kroah-Hartman
parent 023d13952e
commit 3b681a1c43
1 changed files with 1 additions and 0 deletions
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drivers/extcon/extcon.c
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@ -1241,6 +1241,7 @@ 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;
}