drm/edid: Remove arbitrary EDID extension limit

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 5 insertions, 2 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index d91fb8c0b7b..aa24f2f9dc0 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -33,6 +33,7 @@
 #include "drm.h"
 #include "drmP.h"
 #include "drm_crtc.h"
+#include "drm_edid.h"
 
 struct drm_prop_enum_list {
         int type;
@@ -2349,7 +2350,7 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector,
                                             struct edid *edid)
 {
         struct drm_device *dev = connector->dev;
-        int ret = 0;
+        int ret = 0, size;
 
         if (connector->edid_blob_ptr)
                 drm_property_destroy_blob(dev, connector->edid_blob_ptr);
@@ -2361,7 +2362,9 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector,
                 return ret;
         }
 
-        connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid);
+        size = EDID_LENGTH * (1 + edid->extensions);
+        connector->edid_blob_ptr = drm_property_create_blob(connector->dev,
+                                                            size, edid);
 
         ret = drm_connector_property_set_value(connector,
                                                dev->mode_config.edid_property,