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Fix queue_num_free_elements

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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
1 changed files with 4 additions and 1 deletions
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5
libevdev/libevdev-int.h
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@ -208,7 +208,10 @@ queue_size(struct libevdev *dev)
static inline size_t static inline size_t
queue_num_free_elements(struct libevdev *dev) 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 * static inline struct input_event *