w100fb: fix compile warnings

Fix compile warnings from w100fb.c.  Attribute registration failure doesn't
stop the driver working so just warn about it.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/video/w100fb.c

@@ -660,7 +660,7 @@ int __init w100fb_probe(struct platform_device *pdev)
 			err = -ENODEV;
 			goto out;
 	}
-	printk(" at 0x%08lx.\n", mem->start+W100_CFG_BASE);
+	printk(" at 0x%08lx.\n", (unsigned long) mem->start+W100_CFG_BASE);
 
 	/* Remap the framebuffer */
 	remapped_fbuf = ioremap_nocache(mem->start+MEM_WINDOW_BASE, MEM_WINDOW_SIZE);
@@ -753,10 +753,14 @@ int __init w100fb_probe(struct platform_device *pdev)
 		goto out;
 	}
 
-	device_create_file(&pdev->dev, &dev_attr_fastpllclk);
-	device_create_file(&pdev->dev, &dev_attr_reg_read);
-	device_create_file(&pdev->dev, &dev_attr_reg_write);
-	device_create_file(&pdev->dev, &dev_attr_flip);
+	err = device_create_file(&pdev->dev, &dev_attr_fastpllclk);
+	err |= device_create_file(&pdev->dev, &dev_attr_reg_read);
+	err |= device_create_file(&pdev->dev, &dev_attr_reg_write);
+	err |= device_create_file(&pdev->dev, &dev_attr_flip);
+
+	if (err != 0)
+		printk(KERN_WARNING "fb%d: failed to register attributes (%d)\n",
+				info->node, err);
 
 	printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, info->fix.id);
 	return 0;