The function calls preceding these returns can return -EPROBE_DEFER. So
use dev_err_probe to add some information to
/sys/kernel/debug/devices_deferred
Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/gpu/drm/bridge/tc358767.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 290e2532fab19..5ef33ce33dcaa 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -2298,7 +2298,8 @@ static int tc_probe_dpi_bridge_endpoint(struct tc_data *tc)
/* port@1 is the DPI input/output port */
ret = drm_of_find_panel_or_bridge(dev->of_node, 1, 0, &panel, &bridge);
if (ret && ret != -ENODEV)
- return ret;
+ return dev_err_probe(dev, ret,
+ "Could not find DPI panel or bridge\n");
if (panel) {
bridge = devm_drm_panel_bridge_add(dev, panel);
@@ -2326,7 +2327,8 @@ static int tc_probe_edp_bridge_endpoint(struct tc_data *tc)
/* port@2 is the output port */
ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &panel, NULL);
if (ret && ret != -ENODEV)
- return ret;
+ return dev_err_probe(dev, ret,
+ "Could not find DSI panel or bridge\n");
if (panel) {
struct drm_bridge *panel_bridge;
@@ -2550,7 +2552,7 @@ static int tc_probe(struct i2c_client *client)
ret = tc_mipi_dsi_host_attach(tc);
if (ret) {
drm_bridge_remove(&tc->bridge);
- return ret;
+ return dev_err_probe(dev, ret, "Failed to attach DSI host\n");
}
}
--
2.34.1
