[DRM] Fix a regression caused by a typo

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From: Shixin Zeng <zeng.shixin@xxxxxxxxx>

The length of each EDID block is EDID_LENGTH, and number of blocks is (1
+ edid->extensions)

This causes wrong EDID to be passed on, and is a regression introduced
by d2ed34362a52 (drm: Introduce helper for replacing blob properties)

Signed-off-by: Shixin Zeng <zeng.shixin@xxxxxxxxx>
---
 drivers/gpu/drm/drm_crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index b69ed97..b9ba061 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -4732,7 +4732,7 @@ int drm_mode_connector_update_edid_property(struct drm_connector *connector,
 		return 0;
 
 	if (edid)
-		size = EDID_LENGTH + (1 + edid->extensions);
+		size = EDID_LENGTH * (1 + edid->extensions);
 
 	ret = drm_property_replace_global_blob(dev,
 					       &connector->edid_blob_ptr,
-- 
2.4.5

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