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greybus: operation: clean up operation work function 

Call request handler helper explicitly from the work function rather
than overload the operation completion callback.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2015-07-14 15:43:28 +02:00 committed by Greg Kroah-Hartman
parent db1481ba7f
commit c600e535a7
1 changed files with 10 additions and 11 deletions
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21
drivers/staging/greybus/operation.c
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@ -212,9 +212,10 @@ static void gb_operation_request_handle(struct gb_operation *operation)
}
/*
* Complete an operation in non-atomic context. For incoming
* requests, the callback function is the request handler, and
* the operation result should be -EINPROGRESS at this point.
* Process operation work.
*
* For incoming requests, call the protocol request handler. The operation
* result should be -EINPROGRESS at this point.
*
* For outgoing requests, the operation result value should have
* been set before queueing this. The operation callback function
@ -227,7 +228,10 @@ static void gb_operation_work(struct work_struct *work)
operation = container_of(work, struct gb_operation, work);
operation->callback(operation);
if (gb_operation_is_incoming(operation))
gb_operation_request_handle(operation);
else
operation->callback(operation);
gb_operation_put_active(operation);
gb_operation_put(operation);
@ -789,14 +793,9 @@ static void gb_connection_recv_request(struct gb_connection *connection,
gb_operation_get_active(operation);
/*
* Incoming requests are handled by arranging for the
* request handler to be the operation's callback function.
*
* The last thing the handler does is send a response
* message. The initial reference to the operation will be
* dropped when the handler returns.
* The initial reference to the operation will be dropped when the
* request handler returns.
*/
operation->callback = gb_operation_request_handle;
if (gb_operation_result_set(operation, -EINPROGRESS))
queue_work(gb_operation_workqueue, &operation->work);
}