From: Corentin Chary <corentin.chary@gmail.com>
Date: Fri, 1 Jul 2011 09:34:34 +0000 (+0200)
Subject: asus-wmi: fix keyboard backlight detection
X-Git-Tag: next-20110726~12^2~16
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=79863b6e94622aa450037362c1cd76ad53e15010;p=karo-tx-linux.git

asus-wmi: fix keyboard backlight detection

Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
---

diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 2d573bd501b4..1e08366f135d 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -395,8 +395,9 @@ static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
 	retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
 					    0xFFFF);
 
+	/* Unknown status is considered as off */
 	if (retval == 0x8000)
-		retval = -ENODEV;
+		retval = 0;
 
 	if (retval >= 0) {
 		if (level)