From: Ville Syrjälä ville.syrjala@linux.intel.com
When converting from a drm_display_mode to drm_mode_modeinfo, print a warning if the the timings values don't fit into the __u16 datatype.
Signed-off-by: Ville Syrjälä ville.syrjala@linux.intel.com --- drivers/gpu/drm/drm_crtc.c | 7 +++++++ 1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index bbcecdb..d11763f 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1002,6 +1002,13 @@ EXPORT_SYMBOL(drm_mode_config_cleanup); void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, struct drm_display_mode *in) { + WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || + in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || + in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || + in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || + in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, + "timing values too large for mode info\n"); + out->clock = in->clock; out->hdisplay = in->hdisplay; out->hsync_start = in->hsync_start;