asus-wmi: fix keyboard backlight detection
Signed-off-by: Corentin Chary <corentin.chary@gmail.com> Signed-off-by: Matthew Garrett <mjg@redhat.com>
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@ -395,8 +395,9 @@ static int kbd_led_read(struct asus_wmi *asus, int *level, int *env)
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retval = asus_wmi_get_devstate_bits(asus, ASUS_WMI_DEVID_KBD_BACKLIGHT,
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0xFFFF);
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/* Unknown status is considered as off */
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if (retval == 0x8000)
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retval = -ENODEV;
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retval = 0;
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if (retval >= 0) {
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if (level)
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