s390/scm_blk: consistently use blk_status_t as error type

Fix these warnings found by sparse:
drivers/s390/block/scm_blk.c:257:24: warning: incorrect type in assignment (different base types)
drivers/s390/block/scm_blk.c:257:24:    expected int [signed] <noident>
drivers/s390/block/scm_blk.c:257:24:    got restricted blk_status_t [usertype] error
drivers/s390/block/scm_blk.c:420:33: warning: incorrect type in argument 2 (different base types)
drivers/s390/block/scm_blk.c:420:33:    expected restricted blk_status_t [usertype] error
drivers/s390/block/scm_blk.c:420:33:    got int [signed] <noident>

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index 2e7fd96..eb51893 100644 (file)
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -249,7 +249,7 @@ static void scm_request_requeue(struct scm_request *scmrq)
 static void scm_request_finish(struct scm_request *scmrq)
 {
        struct scm_blk_dev *bdev = scmrq->bdev;
-       int *error;
+       blk_status_t *error;
        int i;
 
        for (i = 0; i < nr_requests_per_io && scmrq->request[i]; i++) {
@@ -415,7 +415,7 @@ void scm_blk_irq(struct scm_device *scmdev, void *data, blk_status_t error)
 
 static void scm_blk_request_done(struct request *req)
 {
-       int *error = blk_mq_rq_to_pdu(req);
+       blk_status_t *error = blk_mq_rq_to_pdu(req);
 
        blk_mq_end_request(req, *error);
 }
@@ -450,7 +450,7 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
        atomic_set(&bdev->queued_reqs, 0);
 
        bdev->tag_set.ops = &scm_mq_ops;
-       bdev->tag_set.cmd_size = sizeof(int);
+       bdev->tag_set.cmd_size = sizeof(blk_status_t);
        bdev->tag_set.nr_hw_queues = nr_requests;
        bdev->tag_set.queue_depth = nr_requests_per_io * nr_requests;
        bdev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;