drm/radeon/kms: fix shared ddc detection

Just compare the i2c id since the i2c structs
may be slighly different.

Fixes fdo bug 26616.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 23818854001771bd56d3e463180f193a41b9a61b..65f81942f3994684e829b79bec2a7a7b1d9422b1 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -780,7 +780,7 @@ static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connect
                         * connected and the DVI port disconnected.  If the edid doesn't
                         * say HDMI, vice versa.
                         */
-                       if (radeon_connector->shared_ddc && connector_status_connected) {
+                       if (radeon_connector->shared_ddc && (ret == connector_status_connected)) {
                                struct drm_device *dev = connector->dev;
                                struct drm_connector *list_connector;
                                struct radeon_connector *list_radeon_connector;
@@ -1060,8 +1060,7 @@ radeon_add_atom_connector(struct drm_device *dev,
                        return;
                }
                if (radeon_connector->ddc_bus && i2c_bus->valid) {
-                       if (memcmp(&radeon_connector->ddc_bus->rec, i2c_bus,
-                                   sizeof(struct radeon_i2c_bus_rec)) == 0) {
+                       if (radeon_connector->ddc_bus->rec.i2c_id == i2c_bus->i2c_id) {
                                radeon_connector->shared_ddc = true;
                                shared_ddc = true;
                        }