From 508f1222ba4e14e0737a3a1b39aed9e3e8a21fc7 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Fri, 3 Jun 2016 23:04:03 +0200 Subject: [PATCH] b43: only hardcode LED behavior if SPROM doesn't encode any Only hardcode the LED behavior if the SROM doesn't provide any for all LEDs of the card. This avoids instantiating LED triggers for unconnected LEDs, while (hopefully) keeping things working for old cards with a blank SROM. Signed-off-by: Lucas Stach Signed-off-by: Kalle Valo --- drivers/net/wireless/broadcom/b43/leds.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/broadcom/b43/leds.c b/drivers/net/wireless/broadcom/b43/leds.c index d79ab2a..cb987c2 100644 --- a/drivers/net/wireless/broadcom/b43/leds.c +++ b/drivers/net/wireless/broadcom/b43/leds.c @@ -222,7 +222,7 @@ static void b43_led_get_sprominfo(struct b43_wldev *dev, sprom[2] = dev->dev->bus_sprom->gpio2; sprom[3] = dev->dev->bus_sprom->gpio3; - if (sprom[led_index] == 0xFF) { + if ((sprom[0] & sprom[1] & sprom[2] & sprom[3]) == 0xff) { /* There is no LED information in the SPROM * for this LED. Hardcode it here. */ *activelow = false; @@ -250,7 +250,11 @@ static void b43_led_get_sprominfo(struct b43_wldev *dev, return; } } else { - *behaviour = sprom[led_index] & B43_LED_BEHAVIOUR; + /* keep LED disabled if no mapping is defined */ + if (sprom[led_index] == 0xff) + *behaviour = B43_LED_OFF; + else + *behaviour = sprom[led_index] & B43_LED_BEHAVIOUR; *activelow = !!(sprom[led_index] & B43_LED_ACTIVELOW); } } -- 2.7.4