of: Decrement refcount of previous endpoint in of_graph_get_next_endpoint

Decrementing the reference count of the previous endpoint node allows to
use the of_graph_get_next_endpoint function in a for_each_... style macro.
All current users of this function that pass a non-NULL prev parameter
(that is, soc_camera and imx-drm) are changed to not decrement the passed
prev argument's refcount themselves.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/media/platform/am437x/am437x-vpfe.c b/drivers/media/platform/am437x/am437x-vpfe.c
index 56a5cb0d2152..0d07fca756fe 100644
--- a/drivers/media/platform/am437x/am437x-vpfe.c
+++ b/drivers/media/platform/am437x/am437x-vpfe.c
@@ -2504,7 +2504,6 @@ vpfe_get_pdata(struct platform_device *pdev)
                                              GFP_KERNEL);
                 pdata->asd[i]->match_type = V4L2_ASYNC_MATCH_OF;
                 pdata->asd[i]->match.of.node = rem;
-                of_node_put(endpoint);
                 of_node_put(rem);
         }
 
diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index cee7b56f8404..f2a3d960b1a6 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -1694,7 +1694,6 @@ static void scan_of_host(struct soc_camera_host *ici)
                 if (!i)
                         soc_of_bind(ici, epn, ren->parent);
 
-                of_node_put(epn);
                 of_node_put(ren);
 
                 if (i) {
@@ -1702,6 +1701,8 @@ static void scan_of_host(struct soc_camera_host *ici)
                         break;
                 }
         }
+
+        of_node_put(epn);
 }
 
 #else