platform/x86: huawei-wmi: check the return value of device_create_file()
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.comReviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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