platform/x86: think-lmi: Correct NVME index default

The NVME/HDD index used by WMI starts at 1 so corrected the default
appropriately.
Note, zero index is still permitted in case it is required on future
platforms.
Documentation updated correspondingly

Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230601200552.4396-7-mpearson-lenovo@squebb.ca
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Documentation/ABI/testing/sysfs-class-firmware-attributes

@@ -243,8 +243,8 @@ Description:
 
 		index:
 					Used with HDD and NVME authentication to set the drive index
-					that is being referenced (e.g hdd0, hdd1 etc)
-					This attribute defaults to device 0.
+					that is being referenced (e.g hdd1, hdd2 etc)
+					This attribute defaults to device 1.
 
 		certificate, signature, save_signature:
 					These attributes are used for certificate based authentication. This is

drivers/platform/x86/think-lmi.c

@@ -1534,6 +1534,10 @@ static int tlmi_analyze(void)
 		if (!tlmi_priv.pwd_nvme)
 			goto fail_clear_attr;
 
+		/* Set default hdd/nvme index to 1 as there is no device 0 */
+		tlmi_priv.pwd_hdd->index = 1;
+		tlmi_priv.pwd_nvme->index = 1;
+
 		if (tlmi_priv.pwdcfg.core.password_state & TLMI_HDD_PWD) {
 			/* Check if PWD is configured and set index to first drive found */
 			if (tlmi_priv.pwdcfg.ext.hdd_user_password ||