platform-driver-x86: fix wrong merge for compal-laptop.c

I found the commit 80183a4b
"compal-laptop/fujitsu-laptop/msi-laptop: make dmi_check_cb to return 1 instead of 0"
has wrong patch merge.

The original patch change the return value for dmi_check_cb():
https://lkml.org/lkml/2010/7/2/88
But commit 80183a4b changed the return value for set_backlight_level.
Signed-off-by: NAxel Lin <axel.lin@gmail.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

drivers/platform/x86/compal-laptop.c

@@ -275,7 +275,7 @@ static int set_backlight_level(int level)
 
 	ec_write(BACKLIGHT_LEVEL_ADDR, level);
 
-	return 1;
+	return 0;
 }
 
 static int get_backlight_level(void)
@@ -763,7 +763,7 @@ static int dmi_check_cb(const struct dmi_system_id *id)
 	printk(KERN_INFO DRIVER_NAME": Identified laptop model '%s'\n",
 		id->ident);
 	extra_features = false;
-	return 0;
+	return 1;
 }
 
 static int dmi_check_cb_extra(const struct dmi_system_id *id)
@@ -772,7 +772,7 @@ static int dmi_check_cb_extra(const struct dmi_system_id *id)
 		"enabling extra features\n",
 		id->ident);
 	extra_features = true;
-	return 0;
+	return 1;
 }
 
 static struct dmi_system_id __initdata compal_dmi_table[] = {