s390/dasd: Clarify comment

dasd_cancel_req will never return 1, only 0.

Signed-off-by: Hannes Reinecke <[email protected]>
Signed-off-by: Stefan Weinhuber <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
This commit is contained in:
Hannes Reinecke 2013-01-30 09:26:11 +00:00 • committed by Martin Schwidefsky
commit b99a946de6

View file

@ -2402,8 +2402,7 @@ int dasd_sleep_on_immediatly(struct dasd_ccw_req *cqr)
* Cancels a request that was started with dasd_sleep_on_req.
* This is useful to timeout requests. The request will be
* terminated if it is currently in i/o.
* Returns 1 if the request has been terminated.
* 0 if there was no need to terminate the request (not started yet)
* Returns 0 if request termination was successful
* negative error code if termination failed
* Cancellation of a request is an asynchronous operation! The calling
* function has to wait until the request is properly returned via callback.
@ -2440,7 +2439,6 @@ int dasd_cancel_req(struct dasd_ccw_req *cqr)
return rc;
}
/*
* SECTION: Operations of the dasd_block layer.
*/