fujitu-laptop: fix tests of acpi_evaluate_integer() return value

Fix tests on return value from acpi_evaluate_integer().  Based on a patch by
Roel Kluin <roel.kluin@gmail.com> and incorporating suggestions from Len
Brown <lenb@kernel.org>.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index bcd4ba8be7db..3c2d0384b43b 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -376,8 +376,8 @@ static int get_lcd_level(void)
 
         status =
             acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
-        if (status < 0)
-                return status;
+        if (ACPI_FAILURE(status))
+                return 0;
 
         fujitsu->brightness_level = state & 0x0fffffff;
 
@@ -398,8 +398,8 @@ static int get_max_brightness(void)
 
         status =
             acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
-        if (status < 0)
-                return status;
+        if (ACPI_FAILURE(status))
+                return -1;
 
         fujitsu->max_brightness = state;