From 6a8ca6f5ffbca4ef92da34bd28465539c511b97e Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Tue, 5 Jul 2011 15:44:34 +0100 Subject: [PATCH] gma500: Fix backlight crash We need to check the NULL case earlier. Signed-off-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/staging/gma500/backlight.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/staging/gma500/backlight.c b/drivers/staging/gma500/backlight.c index 4027e700561a..d3e698b4de61 100644 --- a/drivers/staging/gma500/backlight.c +++ b/drivers/staging/gma500/backlight.c @@ -38,9 +38,10 @@ void gma_backlight_exit(struct drm_device *dev) { #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE struct drm_psb_private *dev_priv = dev->dev_private; - dev_priv->backlight_device->props.brightness = 0; - backlight_update_status(dev_priv->backlight_device); - if (dev_priv->backlight_device) + if (dev_priv->backlight_device) { + dev_priv->backlight_device->props.brightness = 0; + backlight_update_status(dev_priv->backlight_device); backlight_device_unregister(dev_priv->backlight_device); + } #endif } -- 2.20.1