Pull 5571 into release branch

git-mirror · Dec 1, 2005 · b7639da · b7639da
2 parents c8734a9 + 59d399d
commit b7639da
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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))