[PATCH v2] drm/imx: check parallel-display drm_bridge_attach

[Osama Abdelkader]

imx_pd_bind() ignored the return value of drm_bridge_attach(), so a
failed attach could still proceed to drm_bridge_connector_init().

Check the return value, as imx-ldb and dw_hdmi-imx already do.

Fixes: f94b9707a1c9 ("drm/imx: parallel-display: switch to imx_legacy_bridge / drm_bridge_connector")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Osama Abdelkader <osama.abdelkader@xxxxxxxxx>
---
v2:
- add Fixes and Cc tags
---
 drivers/gpu/drm/imx/ipuv3/parallel-display.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/imx/ipuv3/parallel-display.c b/drivers/gpu/drm/imx/ipuv3/parallel-display.c
index eb75827394f8..fd48845877cc 100644
--- a/drivers/gpu/drm/imx/ipuv3/parallel-display.c
+++ b/drivers/gpu/drm/imx/ipuv3/parallel-display.c
@@ -210,7 +210,9 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
 	if (ret)
 		return ret;
 
-	drm_bridge_attach(encoder, bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
+	ret = drm_bridge_attach(encoder, bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR);
+	if (ret)
+		return ret;
 
 	connector = drm_bridge_connector_init(drm, encoder);
 	if (IS_ERR(connector))
-- 
2.43.0