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udl: handle EDID failure properly.
[platform/adaptation/renesas_rcar/renesas_kernel.git]
/
drivers
/
gpu
/
drm
/
udl
/
udl_connector.c
diff --git
a/drivers/gpu/drm/udl/udl_connector.c
b/drivers/gpu/drm/udl/udl_connector.c
index
fe5cdbc
..
b44d548
100644
(file)
--- a/
drivers/gpu/drm/udl/udl_connector.c
+++ b/
drivers/gpu/drm/udl/udl_connector.c
@@
-61,6
+61,10
@@
static int udl_get_modes(struct drm_connector *connector)
int ret;
edid = (struct edid *)udl_get_edid(udl);
+ if (!edid) {
+ drm_mode_connector_update_edid_property(connector, NULL);
+ return 0;
+ }
/*
* We only read the main block, but if the monitor reports extension