drivers: dio: fix possible memory leak in dio_init()
authorYang Yingliang <yangyingliang@huawei.com>
Wed, 9 Nov 2022 06:40:36 +0000 (14:40 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 31 Dec 2022 12:32:38 +0000 (13:32 +0100)
commit78fddc0ff971f9874d53c854818cc4aafa144114
treef8868c27fec4e0e29a9ed4b476c8adbf6658b207
parent6392d71b4bf9b11ed51d3fcfba1764e01663df67
drivers: dio: fix possible memory leak in dio_init()

[ Upstream commit e63e99397b2613d50a5f4f02ed07307e67a190f1 ]

If device_register() returns error, the 'dev' and name needs be
freed. Add a release function, and then call put_device() in the
error path, so the name is freed in kobject_cleanup() and to the
'dev' is freed in release function.

Fixes: 2e4c77bea3d8 ("m68k: dio - Kill warn_unused_result warnings")
Fixes: 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221109064036.1835346-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/dio/dio.c