platform/x86: huawei-wmi: check the return value of device_create_file()

stable inclusion
from stable-v5.10.110
commit 956fab99ad269831a1b32c7f4b762c31ad9364fb
bugzilla: https://gitee.com/openeuler/kernel/issues/I574AL

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=956fab99ad269831a1b32c7f4b762c31ad9364fb



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[ Upstream commit c91a5b1c ]

The function device_create_file() in huawei_wmi_battery_add() can fail,
so its return value should be checked.

Fixes: 355a070b ("platform/x86: huawei-wmi: Add battery charging thresholds")
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Link: https://lore.kernel.org/r/20220303022421.313-1-baijiaju1990@gmail.com


Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Yu Liao <liaoyu15@huawei.com>
Reviewed-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>