From: Ville Syrjälä <ville.syrj...@linux.intel.com>
The EDID extension block checksum byte is not part of the
actual DispID data, so don't use it in validate_displayid().
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/drm_edid.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 3067be710e5b..f1ba06396c0a 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -3222,7 +3222,8 @@ static u8 *drm_find_displayid_extension(const struct edid
*edid,
if (!displayid)
return NULL;
- *length = EDID_LENGTH;
+ /* EDID extensions block checksum isn't for us */
+ *length = EDID_LENGTH - 1;
*idx = 1;
ret = validate_displayid(displayid, *length, *idx);
--
2.24.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
