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 4af5709f83179aa62f44a11e69684f6713ab93c4..19445eaff6ff9795ff18a58686bedc9292c9b849 100644 (file)
--- 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;