Returning an error code from a mipi_dsi remove callback fails, this is
silently ignored. (mipi_dsi_drv_remove() propagates the return value to
device_remove() which ignores it.) So emit an error code in the driver
remove function and return 0.

Signed-off-by: Uwe Kleine-König <u.kleine-koe...@pengutronix.de>
---
 drivers/gpu/drm/panel/panel-novatek-nt35510.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-novatek-nt35510.c 
b/drivers/gpu/drm/panel/panel-novatek-nt35510.c
index 873cbd38e6d3..672e49ced240 100644
--- a/drivers/gpu/drm/panel/panel-novatek-nt35510.c
+++ b/drivers/gpu/drm/panel/panel-novatek-nt35510.c
@@ -974,9 +974,12 @@ static int nt35510_remove(struct mipi_dsi_device *dsi)
        mipi_dsi_detach(dsi);
        /* Power off */
        ret = nt35510_power_off(nt);
+       if (ret)
+               dev_err(&dsi->dev, "Failed to power off\n");
+
        drm_panel_remove(&nt->panel);
 
-       return ret;
+       return 0;
 }
 
 /*
-- 
2.36.1

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