If we never initialized the libwacom database, don't check the refcount

If the libwacom context failed to initialize for some reason, the database is
NULL and the refcount remains at zero. Calling unref should just work then.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/src/libinput.c b/src/libinput.c
index c0cd2fa..6d00a00 100644 (file)
--- a/src/libinput.c
+++ b/src/libinput.c
@@ -4257,6 +4257,9 @@ libinput_libwacom_ref(struct libinput *li)
 void
 libinput_libwacom_unref(struct libinput *li)
 {
+       if (!li->libwacom.db)
+               return;
+
        assert(li->libwacom.refcount >= 1);
 
        if (--li->libwacom.refcount == 0) {