diff options
| author | Mario Limonciello <mario.limonciello@amd.com> | 2021-06-22 15:07:55 -0500 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2021-06-28 11:34:45 +0200 |
| commit | 0fdf10e5fc964c315cf131a2eaab9cc531a9f40f (patch) | |
| tree | d30cbbd7977b08037aa8fde717e4f099b579a371 /drivers/platform/x86/think-lmi.c | |
| parent | 1bcad8e510b27ad843315ab2c27ccf459e3acded (diff) | |
| download | linux-0fdf10e5fc964c315cf131a2eaab9cc531a9f40f.tar.gz linux-0fdf10e5fc964c315cf131a2eaab9cc531a9f40f.tar.bz2 linux-0fdf10e5fc964c315cf131a2eaab9cc531a9f40f.zip | |
platform/x86: think-lmi: Split current_value to reflect only the value
Currently attributes will show things like:
`BootOrderLock,Disable`
rather than just
`Disable`.
Of course this works, but the attribute is intended to be read by
userspace tools and not require further processing. That is a userspace
tool can display a drop down of `possible_values` and `current_value` is
one of them from the list.
This also aligns `think-lmi` with how `dell-wmi-sysman` works.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20210622200755.12379-3-mario.limonciello@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/think-lmi.c')
| -rw-r--r-- | drivers/platform/x86/think-lmi.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c index bbfcaf23d420..4cab341a3538 100644 --- a/drivers/platform/x86/think-lmi.c +++ b/drivers/platform/x86/think-lmi.c @@ -492,14 +492,19 @@ static ssize_t display_name_show(struct kobject *kobj, struct kobj_attribute *at static ssize_t current_value_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { struct tlmi_attr_setting *setting = to_tlmi_attr_setting(kobj); - char *item; + char *item, *value; int ret; ret = tlmi_setting(setting->index, &item, LENOVO_BIOS_SETTING_GUID); if (ret) return ret; - ret = sysfs_emit(buf, "%s\n", item); + /* validate and split from `item,value` -> `value` */ + value = strpbrk(item, ","); + if (!value || value == item || !strlen(value + 1)) + return -EINVAL; + + ret = sysfs_emit(buf, "%s\n", value + 1); kfree(item); return ret; } |