diff options
| -rw-r--r-- | src/cairo-os2-surface.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/src/cairo-os2-surface.c b/src/cairo-os2-surface.c index 754f60c1..b9758281 100644 --- a/src/cairo-os2-surface.c +++ b/src/cairo-os2-surface.c @@ -714,7 +714,15 @@ static cairo_bool_t _cairo_os2_surface_get_extents (void *abstract_surface, cairo_rectangle_int_t *rectangle) { - cairo_os2_surface_t *local_os2_surface = abstract_surface; + cairo_os2_surface_t *local_os2_surface; + + local_os2_surface = (cairo_os2_surface_t *) abstract_surface; + if ((!local_os2_surface) || + (local_os2_surface->base.backend != &cairo_os2_surface_backend)) + { + /* Invalid parameter (wrong surface)! */ + return _cairo_error (CAIRO_STATUS_SURFACE_TYPE_MISMATCH); + } rectangle->x = 0; rectangle->y = 0; |