diff options
| -rw-r--r-- | tools/lib/perf/include/internal/xyarray.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/tools/lib/perf/include/internal/xyarray.h b/tools/lib/perf/include/internal/xyarray.h index 51e35d6c8ec4..f10af3da7b21 100644 --- a/tools/lib/perf/include/internal/xyarray.h +++ b/tools/lib/perf/include/internal/xyarray.h @@ -18,11 +18,18 @@ struct xyarray *xyarray__new(int xlen, int ylen, size_t entry_size); void xyarray__delete(struct xyarray *xy); void xyarray__reset(struct xyarray *xy); -static inline void *xyarray__entry(struct xyarray *xy, int x, int y) +static inline void *__xyarray__entry(struct xyarray *xy, int x, int y) { return &xy->contents[x * xy->row_size + y * xy->entry_size]; } +static inline void *xyarray__entry(struct xyarray *xy, size_t x, size_t y) +{ + if (x >= xy->max_x || y >= xy->max_y) + return NULL; + return __xyarray__entry(xy, x, y); +} + static inline int xyarray__max_y(struct xyarray *xy) { return xy->max_y; |