[RFC PATCH 19/24] v4l2_device_register_subdev_nodes: allow calling multiple times

[Ivaylo Dimitrov]

From: Sebastian Reichel <s...@kernel.org>

---
 drivers/media/v4l2-core/v4l2-device.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-device.c 
b/drivers/media/v4l2-core/v4l2-device.c
index 06fa5f1..5aebe0a 100644
--- a/drivers/media/v4l2-core/v4l2-device.c
+++ b/drivers/media/v4l2-core/v4l2-device.c
@@ -238,6 +238,9 @@ int v4l2_device_register_subdev_nodes(struct v4l2_device 
*v4l2_dev)
                if (!(sd->flags & V4L2_SUBDEV_FL_HAS_DEVNODE))
                        continue;
 
+               if(sd->devnode)
+                       continue;
+
                vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
                if (!vdev) {
                        err = -ENOMEM;
-- 
1.9.1

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