From: Sean Paul <seanpaul@chromium.org>
Date: Mon, 30 Jul 2018 15:26:54 +0000 (-0400)
Subject: drm/msm: dsi: Return errors whan dt parsing fails
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=feb085ec8a3dc186ed1e5e642b6568297c01cc4a;p=linux.git

drm/msm: dsi: Return errors whan dt parsing fails

If dt parsing fails, we should return an error instead of pretending
everything completed successfully.

Cc: Doug Anderson <dianders@chromium.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>

Signed-off-by: Rob Clark <robdclark@gmail.com>
---

diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 96fb5f6353148..9c6c523eacdcb 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1750,6 +1750,7 @@ static int dsi_host_parse_dt(struct msm_dsi_host *msm_host)
 	if (ret) {
 		dev_err(dev, "%s: invalid lane configuration %d\n",
 			__func__, ret);
+		ret = -EINVAL;
 		goto err;
 	}
 
@@ -1757,6 +1758,7 @@ static int dsi_host_parse_dt(struct msm_dsi_host *msm_host)
 	device_node = of_graph_get_remote_node(np, 1, 0);
 	if (!device_node) {
 		dev_dbg(dev, "%s: no valid device\n", __func__);
+		ret = -ENODEV;
 		goto err;
 	}