Pull 5571 into release branch

b7639daf · Len Brown · c8734a96 · 59d399d3 · b7639daf
Commit b7639daf authored Dec 01, 2005 by Len Brown
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drivers/acpi/video.c drivers/acpi/video.c +1 -1

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--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -812,7 +812,7 @@ acpi_video_device_write_brightness(struct file *file,

 	ACPI_FUNCTION_TRACE("acpi_video_device_write_brightness");

-	if (!dev || count + 1 > sizeof str)
+	if (!dev || !dev->brightness || count + 1 > sizeof str)
 		return_VALUE(-EINVAL);

 	if (copy_from_user(str, buffer, count))