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greybus: operation: update gb_operation_request_send() documentation 

Fix and update gb_operation_request_send() documentation and add
kernel-doc formatting.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2016-04-29 17:08:31 +02:00 committed by Greg Kroah-Hartman
parent 410abddb03
commit 613c15e86b
1 changed files with 14 additions and 7 deletions
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21
drivers/staging/greybus/operation.c
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@ -627,13 +627,20 @@ static void gb_operation_sync_callback(struct gb_operation *operation)
complete(&operation->completion);
}
/*
* Send an operation request message. The caller has filled in any payload so
* the request message is ready to go. The callback function supplied will be
* called when the response message has arrived indicating the operation is
* complete. In that case, the callback function is responsible for fetching
* the result of the operation using gb_operation_result() if desired, and
* dropping the initial reference to the operation.
/**
* gb_operation_request_send() - send an operation request message
* @operation: the operation to initiate
* @callback: the operation completion callback
* @gfp: the memory flags to use for any allocations
*
* The caller has filled in any payload so the request message is ready to go.
* The callback function supplied will be called when the response message has
* arrived, or the operation is cancelled, indicating that the operation is
* complete. The callback function can fetch the result of the operation using
* gb_operation_result() if desired.
*
* Return: 0 if the request was successfully queued in the host-driver queues,
* or a negative errno.
*/
int gb_operation_request_send(struct gb_operation *operation,
gb_operation_callback callback,