diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2013-10-21 19:01:58 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-10-28 17:56:00 +0100 |
| commit | 92e76c8c7e436a07af3e0b594480ff8689add078 (patch) | |
| tree | d40b6eca356bc4817aad58825c18f4e671da1f1f /drivers/gpu/drm/i915 | |
| parent | b4ed448447970aab11ee33ac28716baaff68fbb8 (diff) | |
drm/i915: Clamp cursor coordinates to int16_t range
We store cursor_x/y as int16_t internally, but the user provided
coordinates are int32_t. Clamp the coordinates so that they don't
overflow the int16_t. Since the cursor is only 64x64 in size, the
clamping can't cause any visual changes.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8c3bf8a89cb7..c69a5b844f5a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -7333,8 +7333,8 @@ static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y) { struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - intel_crtc->cursor_x = x; - intel_crtc->cursor_y = y; + intel_crtc->cursor_x = clamp_t(int, x, SHRT_MIN, SHRT_MAX); + intel_crtc->cursor_y = clamp_t(int, y, SHRT_MIN, SHRT_MAX); if (intel_crtc->active) intel_crtc_update_cursor(crtc, intel_crtc->cursor_bo != NULL); |