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s390/dasd: remove unneeded sanity check 

Reported by smatch that the usage of cqr->block is inconsistent.
The sanity check is not needed because _dasd_requeue_request already
checks for a valid cqr->block pointer and all referenced ERP requests
have a valid cqr->block pointer as well since it is copied during ERP
process.

Signed-off-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Stefan Haberland 2018-02-19 12:24:39 +01:00 committed by Martin Schwidefsky
parent 5e725c570e
commit a1fc8181eb
1 changed files with 7 additions and 2 deletions
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7
drivers/s390/block/dasd.c
View File

@ -3918,7 +3918,12 @@ static int dasd_generic_requeue_all_requests(struct dasd_device *device)
cqr = refers;
}
if (cqr->block)
/*
* _dasd_requeue_request already checked for a valid
* blockdevice, no need to check again
* all erp requests (cqr->refers) have a cqr->block
* pointer copy from the original cqr
*/
list_del_init(&cqr->blocklist);
cqr->block->base->discipline->free_cp(
cqr, (struct request *) cqr->callback_data);