The check for parameters is done below in the function. Initialize the entity variable properly, after the parameters have been checked. Fixes: 61f5db549dde ("[media] v4l: Make v4l2_subdev inherit from media_entity") Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx> --- drivers/media/v4l2-core/v4l2-device.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c index 63d6b147b21e..6e33132ebb19 100644 --- a/drivers/media/v4l2-core/v4l2-device.c +++ b/drivers/media/v4l2-core/v4l2-device.c @@ -112,7 +112,7 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev, struct v4l2_subdev *sd) { #if defined(CONFIG_MEDIA_CONTROLLER) - struct media_entity *entity = &sd->entity; + struct media_entity *entity; #endif int err; @@ -141,6 +141,7 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev, goto error_module; #if defined(CONFIG_MEDIA_CONTROLLER) + entity = &sd->entity; /* Register the entity. */ if (v4l2_dev->mdev) { err = media_device_register_entity(v4l2_dev->mdev, entity); -- 2.20.1