The wrong test was used acpi_status status is unsigned.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Cc: Len Brown <lenb@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

drivers/platform/x86/fujitsu-laptop.c

@@ -376,7 +376,7 @@ static int get_lcd_level(void)
 
 	status =
 	    acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
-	if (status < 0)
+	if (ACPI_FAILURE(status))
 		return status;
 
 	fujitsu->brightness_level = state & 0x0fffffff;
@@ -398,7 +398,7 @@ static int get_max_brightness(void)
 
 	status =
 	    acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
-	if (status < 0)
+	if (ACPI_FAILURE(status))
 		return status;
 
 	fujitsu->max_brightness = state;