Fix queue_num_free_elements

Return 0 for an unallocated queue, and return the actual number of events (rather than one too
little).

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2013-06-09 20:11:39 +10:00
parent 7889b467f7
commit e1d599f4c9

View file

@ -208,7 +208,10 @@ queue_size(struct libevdev *dev)
static inline size_t
queue_num_free_elements(struct libevdev *dev)
{
return dev->queue_size - dev->queue_next - 1;
if (dev->queue_size == 0)
return 0;
return dev->queue_size - dev->queue_next;
}
static inline struct input_event *