drm/imx: parallel-display: check return value of devm_drm_bridge_add() in imx_pd_probe()

Return the value of devm_drm_bridge_add() in order to propagate the
error properly, if it fails due to resource allocation failure or bridge
registration failure.

This ensures that the probe function fails safely rather than proceeding
with a potentially incomplete bridge setup.

Fixes: bf7e97910b9f ("drm/imx: parallel-display: add the bridge before attaching it")
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://patch.msgid.link/20260204090629.2209542-1-nichen@iscas.ac.cn
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

diff --git a/drivers/gpu/drm/imx/ipuv3/parallel-display.c b/drivers/gpu/drm/imx/ipuv3/parallel-display.c
index 6fbf505d2801d6f2f0e55ec0273ea256befe6149..590120a33fa074c544843bb25a111763cb50b754 100644 (file)
--- a/drivers/gpu/drm/imx/ipuv3/parallel-display.c
+++ b/drivers/gpu/drm/imx/ipuv3/parallel-display.c
@@ -256,7 +256,9 @@ static int imx_pd_probe(struct platform_device *pdev)
 
        platform_set_drvdata(pdev, imxpd);
 
-       devm_drm_bridge_add(dev, &imxpd->bridge);
+       ret = devm_drm_bridge_add(dev, &imxpd->bridge);
+       if (ret)
+               return ret;
 
        return component_add(dev, &imx_pd_ops);
 }