tee: optee: fix possible memory leak in optee_register_device()
authorYang Yingliang <yangyingliang@huawei.com>
Wed, 9 Nov 2022 14:01:24 +0000 (22:01 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 2 Dec 2022 16:39:59 +0000 (17:39 +0100)
commitb547bf71fa7e35e22dd6494588a71ebd318aae09
tree2726fb15a3c353bd9508abb2e020c4e5a304a8c6
parentb76c5a99f44a9bcf78df7abf1fcb74dda6c1d10f
tee: optee: fix possible memory leak in optee_register_device()

[ Upstream commit cce616e012c215d65c15e5d1afa73182dea49389 ]

If device_register() returns error in optee_register_device(),
the name allocated by dev_set_name() need be freed. As comment
of device_register() says, it should use put_device() to give
up the reference in the error path. So fix this by calling
put_device(), then the name can be freed in kobject_cleanup(),
and optee_device is freed in optee_release_device().

Fixes: c3fa24af9244 ("tee: optee: add TEE bus device enumeration support")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/tee/optee/device.c