This patch fixes wrong return type when dt binding of bridge device failed.
If a board has a bridge device then of_graph_get_remote_port_parent function shouldn't be NULL. So this patch will return a proper error type so that the deferred probe isn't triggered.
Changelog v2: - return -EINVAL if getting a port node failed.
Signed-off-by: Inki Dae inki.dae@samsung.com Reviewed-by: Javier Martinez Canillas javier@osg.samsung.com --- drivers/gpu/drm/exynos/exynos_dp_core.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c index 60260a0..aeee60a 100644 --- a/drivers/gpu/drm/exynos/exynos_dp_core.c +++ b/drivers/gpu/drm/exynos/exynos_dp_core.c @@ -1437,8 +1437,10 @@ static int exynos_dp_probe(struct platform_device *pdev) of_node_put(bridge_node); if (!dp->ptn_bridge) return -EPROBE_DEFER; - } else - return -EPROBE_DEFER; + } else { + DRM_ERROR("no port node for bridge device.\n"); + return -EINVAL; + } }
out: