[PATCH] drm/panel: sitronix-st7789v: Add check for of_drm_get_panel_orientation

[Chen Ni]

Add check for the return value of of_drm_get_panel_orientation() and
return the error if it fails in order to catch the error.

Fixes: b27c0f6d208d ("drm/panel: sitronix-st7789v: add panel orientation 
support")
Signed-off-by: Chen Ni <nic...@iscas.ac.cn>
---
 drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c 
b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
index 88e80fe98112..8b15e225bf37 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
@@ -643,7 +643,9 @@ static int st7789v_probe(struct spi_device *spi)
        if (ret)
                return dev_err_probe(dev, ret, "Failed to get backlight\n");
 
-       of_drm_get_panel_orientation(spi->dev.of_node, &ctx->orientation);
+       ret = of_drm_get_panel_orientation(spi->dev.of_node, &ctx->orientation);
+       if (ret)
+               return dev_err_probe(&spi->dev, ret, "Failed to get 
orientation\n");
 
        drm_panel_add(&ctx->panel);
 
-- 
2.25.1