@@ -3899,18 +3899,19 @@ void v4l2_ctrl_request_complete(struct media_request *req,
}
EXPORT_SYMBOL(v4l2_ctrl_request_complete);
-void v4l2_ctrl_request_setup(struct media_request *req,
+int v4l2_ctrl_request_setup(struct media_request *req,
struct v4l2_ctrl_handler *main_hdl)
{
struct media_request_object *obj;
struct v4l2_ctrl_handler *hdl;
struct v4l2_ctrl_ref *ref;
+ int ret = 0;
if (!req || !main_hdl)
- return;
+ return 0;
if (WARN_ON(req->state != MEDIA_REQUEST_STATE_QUEUED))
- return;
+ return -EBUSY;
/*
* Note that it is valid if nothing was found. It means
@@ -3919,10 +3920,10 @@ void v4l2_ctrl_request_setup(struct media_request *req,
*/
obj = media_request_object_find(req, &req_ops, main_hdl);
if (!obj)
- return;
+ return 0;
if (obj->completed) {
media_request_object_put(obj);
- return;
+ return -EBUSY;
}
hdl = container_of(obj, struct v4l2_ctrl_handler, req_obj);
@@ -3990,12 +3991,15 @@ void v4l2_ctrl_request_setup(struct media_request *req,
update_from_auto_cluster(master);
}
- try_or_set_cluster(NULL, master, true, 0);
-
+ ret = try_or_set_cluster(NULL, master, true, 0);
v4l2_ctrl_unlock(master);
+
+ if (ret)
+ break;
}
media_request_object_put(obj);
+ return ret;
}
EXPORT_SYMBOL(v4l2_ctrl_request_setup);
@@ -1127,7 +1127,7 @@ __poll_t v4l2_ctrl_poll(struct file *file, struct poll_table_struct *wait);
* applying control values in a request is only applicable to memory-to-memory
* devices.
*/
-void v4l2_ctrl_request_setup(struct media_request *req,
+int v4l2_ctrl_request_setup(struct media_request *req,
struct v4l2_ctrl_handler *parent);
/**
If one of the controls fails to set, then 'v4l2_ctrl_request_setup' immediately returns with the error code. Signed-off-by: Dafna Hirschfeld <dafna3@gmail.com> --- drivers/media/v4l2-core/v4l2-ctrls.c | 18 +++++++++++------- include/media/v4l2-ctrls.h | 2 +- 2 files changed, 12 insertions(+), 8 deletions(-)