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s390/dasd: Clarify comment

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dasd_cancel_req will never return 1, only 0.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Hannes Reinecke 2013-01-30 09:26:11 +00:00 committed by Martin Schwidefsky
parent d783d9ad4b
commit b99a946de6
1 changed files with 1 additions and 3 deletions
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4
drivers/s390/block/dasd.c
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@ -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.
*/