extcon: fix possible name leak in extcon_dev_register()

[ Upstream commit e66523c72c9aae0ff0dae6859eb77b04de1e8e5f ]

In the error path after calling dev_set_name(), the device
name is leaked. To fix this, moving dev_set_name() after the
error path and before device_register.

Link: https://lore.kernel.org/lkml/TYZPR01MB4784ADCD3E951E0863F3DB72D5B8A@TYZPR01MB4784.apcprd01.prod.exchangelabs.com/
Signed-off-by: Yaxiong Tian <tianyaxiong@kylinos.cn>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 6f7a60d..e7f55c0 100644 (file)
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -1280,8 +1280,6 @@ int extcon_dev_register(struct extcon_dev *edev)
 
        edev->id = ret;
 
-       dev_set_name(&edev->dev, "extcon%d", edev->id);
-
        ret = extcon_alloc_cables(edev);
        if (ret < 0)
                goto err_alloc_cables;
@@ -1310,6 +1308,7 @@ int extcon_dev_register(struct extcon_dev *edev)
        RAW_INIT_NOTIFIER_HEAD(&edev->nh_all);
 
        dev_set_drvdata(&edev->dev, edev);
+       dev_set_name(&edev->dev, "extcon%d", edev->id);
        edev->state = 0;
 
        ret = device_register(&edev->dev);