From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/drivers/media/v4l2-core/v4l2-fwnode.c | 18 ++++++++++++++----
1 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/kernel/drivers/media/v4l2-core/v4l2-fwnode.c b/kernel/drivers/media/v4l2-core/v4l2-fwnode.c
index dfc53d1..1977ce0 100644
--- a/kernel/drivers/media/v4l2-core/v4l2-fwnode.c
+++ b/kernel/drivers/media/v4l2-core/v4l2-fwnode.c
@@ -572,19 +572,29 @@
link->local_id = fwep.id;
link->local_port = fwep.port;
link->local_node = fwnode_graph_get_port_parent(fwnode);
+ if (!link->local_node)
+ return -ENOLINK;
fwnode = fwnode_graph_get_remote_endpoint(fwnode);
- if (!fwnode) {
- fwnode_handle_put(fwnode);
- return -ENOLINK;
- }
+ if (!fwnode)
+ goto err_put_local_node;
fwnode_graph_parse_endpoint(fwnode, &fwep);
link->remote_id = fwep.id;
link->remote_port = fwep.port;
link->remote_node = fwnode_graph_get_port_parent(fwnode);
+ if (!link->remote_node)
+ goto err_put_remote_endpoint;
return 0;
+
+err_put_remote_endpoint:
+ fwnode_handle_put(fwnode);
+
+err_put_local_node:
+ fwnode_handle_put(link->local_node);
+
+ return -ENOLINK;
}
EXPORT_SYMBOL_GPL(v4l2_fwnode_parse_link);
--
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