[gnome-bluetooth] lib: Fix lookup of device type and icon that regressed in code cleanups

[Benjamin Berg <bberg src gnome org>]

commit bbfd6d2df815ea1d080bb66df19baca49b57f922
Author: Benjamin Berg <bberg redhat com>
Date:   Thu Nov 23 13:33:48 2017 +0100

    lib: Fix lookup of device type and icon that regressed in code cleanups
    
    The code cleanup patch 1b955ae (lib: Unify resolving of device type and
    icon) introduced calls to g_return_if_fail() which were negated causing
    the device_resolve_type_and_icon() function to always fail.

 lib/bluetooth-client.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/lib/bluetooth-client.c b/lib/bluetooth-client.c
index 69d332e..f8cf080 100644
--- a/lib/bluetooth-client.c
+++ b/lib/bluetooth-client.c
@@ -290,8 +290,8 @@ icon_override (const char    *bdaddr,
 static void
 device_resolve_type_and_icon (Device1 *device, BluetoothType *type, const char **icon)
 {
-       g_return_if_fail(!type);
-       g_return_if_fail(!icon);
+       g_return_if_fail (type);
+       g_return_if_fail (icon);
 
        *type = bluetooth_appearance_to_type (device1_get_appearance (device));
        if (*type == 0 || *type == BLUETOOTH_TYPE_ANY)