[PATCH] gpu: ipu-v3: fix refcount leak in ipu_add_client_devices()

[Wang Yufen]

The node returned by of_graph_get_port_by_id() with refcount incremented,
of_node_put() needs be called when finish using it. So add it in the
error path in ipu_add_client_devices().

Fixes: 17e052175039 ("gpu: ipu-v3: Do not bail out on missing optional port 
nodes")
Signed-off-by: Wang Yufen <wangyu...@huawei.com>
---
 drivers/gpu/ipu-v3/ipu-common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index 1183185..80587f5 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -1164,6 +1164,7 @@ static int ipu_add_client_devices(struct ipu_soc *ipu, 
unsigned long ipu_base)
 
                pdev = platform_device_alloc(reg->name, id++);
                if (!pdev) {
+                       of_node_put(of_node);
                        ret = -ENOMEM;
                        goto err_register;
                }
-- 
1.8.3.1