Commit 0a6acbcc authored by Yang Yingliang's avatar Yang Yingliang Committed by sanglipeng
Browse files

tee: optee: fix possible memory leak in optee_register_device()

stable inclusion
from stable-v5.10.157
commit b547bf71fa7e35e22dd6494588a71ebd318aae09
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I7MU59

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b547bf71fa7e35e22dd6494588a71ebd318aae09



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[ Upstream commit cce616e0 ]

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: c3fa24af ("tee: optee: add TEE bus device enumeration support")
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
Reviewed-by: default avatarSumit Garg <sumit.garg@linaro.org>
Signed-off-by: default avatarJens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent 614ac925
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