1 files changed, 14 insertions, 11 deletions

diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c
index 33dddbae5420..8ddb47a56b07 100644
--- a/drivers/video/riva/fbdev.c
+++ b/drivers/video/riva/fbdev.c
@@ -355,10 +355,14 @@ static struct backlight_properties riva_bl_data = {
 static void riva_bl_set_power(struct fb_info *info, int power)
 {
         mutex_lock(&info->bl_mutex);
-        up(&info->bl_dev->sem);
-        info->bl_dev->props->power = power;
-        __riva_bl_update_status(info->bl_dev);
-        down(&info->bl_dev->sem);
+
+        if (info->bl_dev) {
+                down(&info->bl_dev->sem);
+                info->bl_dev->props->power = power;
+                __riva_bl_update_status(info->bl_dev);
+                up(&info->bl_dev->sem);
+        }
+
         mutex_unlock(&info->bl_mutex);
 }
 
@@ -382,7 +386,7 @@ static void riva_bl_init(struct riva_par *par)
         bd = backlight_device_register(name, par, &riva_bl_data);
         if (IS_ERR(bd)) {
                 info->bl_dev = NULL;
-                printk("riva: Backlight registration failed\n");
+                printk(KERN_WARNING "riva: Backlight registration failed\n");
                 goto error;
         }
 
@@ -393,11 +397,11 @@ static void riva_bl_init(struct riva_par *par)
                 0x534 * FB_BACKLIGHT_MAX / MAX_LEVEL);
         mutex_unlock(&info->bl_mutex);
 
-        up(&bd->sem);
+        down(&bd->sem);
         bd->props->brightness = riva_bl_data.max_brightness;
         bd->props->power = FB_BLANK_UNBLANK;
         bd->props->update_status(bd);
-        down(&bd->sem);
+        up(&bd->sem);
 
 #ifdef CONFIG_PMAC_BACKLIGHT
         mutex_lock(&pmac_backlight_mutex);
@@ -2132,6 +2136,9 @@ static int __devinit rivafb_probe(struct pci_dev *pd,
 
         fb_destroy_modedb(info->monspecs.modedb);
         info->monspecs.modedb = NULL;
+
+        pci_set_drvdata(pd, info);
+        riva_bl_init(info->par);
         ret = register_framebuffer(info);
         if (ret < 0) {
                 printk(KERN_ERR PFX
@@ -2139,8 +2146,6 @@ static int __devinit rivafb_probe(struct pci_dev *pd,
                 goto err_iounmap_screen_base;
         }
 
-        pci_set_drvdata(pd, info);
-
         printk(KERN_INFO PFX
                 "PCI nVidia %s framebuffer ver %s (%dMB @ 0x%lX)\n",
                 info->fix.id,
@@ -2148,8 +2153,6 @@ static int __devinit rivafb_probe(struct pci_dev *pd,
                 info->fix.smem_len / (1024 * 1024),
                 info->fix.smem_start);
 
-        riva_bl_init(info->par);
-
         NVTRACE_LEAVE();
         return 0;