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platform/x86: think-lmi: Allow empty admin password

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SVP = BIOS Supervisor/Admin password
SMP = BIOS System password

If SMP ACL is enabled in the BIOS then the system allows you to set the
SMP without a SVP password configured. Change code to allow this.
BIOS will return permissions error if SVP is required.

Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://lore.kernel.org/r/20241024195536.6992-3-mpearson-lenovo@squebb.ca
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Mark Pearson
2024-10-24 15:55:23 -04:00
committed by Ilpo Järvinen
parent c7842e69e4
commit 7c0bbf1ae6
1 changed files with 6 additions and 1 deletions
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7
drivers/platform/x86/think-lmi.c
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@@ -469,7 +469,12 @@ static ssize_t new_password_store(struct kobject *kobj,
if (ret)
goto out;
if (tlmi_priv.pwd_admin->pwd_enabled) {
/*
* Note admin password is not always required if SMPControl enabled in BIOS,
* So only set if it's configured.
* Let BIOS figure it out - we'll get an error if operation is not permitted
*/
if (tlmi_priv.pwd_admin->pwd_enabled && strlen(tlmi_priv.pwd_admin->password)) {
ret = tlmi_opcode_setting("WmiOpcodePasswordAdmin",
tlmi_priv.pwd_admin->password);
if (ret)