Add two asserts to avoid underrunning the seat/device refcount

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

diff --git a/src/libinput.c b/src/libinput.c
index 06b7263..550ca94 100644 (file)
--- a/src/libinput.c
+++ b/src/libinput.c
@@ -504,6 +504,7 @@ libinput_seat_destroy(struct libinput_seat *seat)
 LIBINPUT_EXPORT void
 libinput_seat_unref(struct libinput_seat *seat)
 {
+       assert(seat->refcount > 0);
        seat->refcount--;
        if (seat->refcount == 0)
                libinput_seat_destroy(seat);
@@ -550,6 +551,7 @@ libinput_device_destroy(struct libinput_device *device)
 LIBINPUT_EXPORT void
 libinput_device_unref(struct libinput_device *device)
 {
+       assert(device->refcount > 0);
        device->refcount--;
        if (device->refcount == 0)
                libinput_device_destroy(device);