drm/arm: mali-dp: Fix error return code in malidp_bind()

Fix to return error code -EINVAL from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 3c31760e760c ('drm/arm: mali-dp: Set crtc.port to the port
instead of the endpoint')
Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Acked-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1469672066-13401-1-git-send-email-weiyj.lk@gmail.com

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/gpu/drm/arm/malidp_drv.c b/drivers/gpu/drm/arm/malidp_drv.c
index 116032216e62..82171d223f2d 100644
--- a/drivers/gpu/drm/arm/malidp_drv.c
+++ b/drivers/gpu/drm/arm/malidp_drv.c
@@ -360,8 +360,10 @@ static int malidp_bind(struct device *dev)
 
         /* Set the CRTC's port so that the encoder component can find it */
         ep = of_graph_get_next_endpoint(dev->of_node, NULL);
-        if (!ep)
+        if (!ep) {
+                ret = -EINVAL;
                 goto port_fail;
+        }
         malidp->crtc.port = of_get_next_parent(ep);
 
         ret = component_bind_all(dev, drm);