From: Axel Lin <axel.lin@gmail.com>
Date: Tue, 20 Jul 2010 22:19:47 +0000 (-0700)
Subject: asus-laptop: fix incorrect return value for write_acpi_int_ret if handle is NULL
X-Git-Tag: upstream/snapshot3+hdmi~13795^2~41
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=9fb866f317def195bb794120e13d1d73c2a94bb2;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

asus-laptop: fix incorrect return value for write_acpi_int_ret if handle is NULL

According to the comments of write_acpi_int_ret(), write_acpi_int_ret()
should return 0 if write is successful, -1 else.  Thus if handle is NULL,
the write does not happen, it should return -1.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Corentin Chary <corentincj@iksaif.net>
Cc: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
---

diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 4af5709..19445ea 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -297,7 +297,7 @@ static int write_acpi_int_ret(acpi_handle handle, const char *method, int val,
 	acpi_status status;
 
 	if (!handle)
-		return 0;
+		return -1;
 
 	params.count = 1;
 	params.pointer = &in_obj;