Only one of the three callers of rbd_do_request() provide a
collection structure to aggregate status.

If an error occurs in rbd_do_request(), have the caller
take care of calling rbd_coll_end_req() if necessary in
that one spot.

Signed-off-by: Alex Elder <el...@inktank.com>
---
 drivers/block/rbd.c |   11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 0a35c34..1348825 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -1126,12 +1126,8 @@ static int rbd_do_request(struct request *rq,
        struct ceph_osd_client *osdc;

        rbd_req = kzalloc(sizeof(*rbd_req), GFP_NOIO);
-       if (!rbd_req) {
-               if (coll)
-                       rbd_coll_end_req_index(rq, coll, coll_index,
-                                              (s32) -ENOMEM, len);
+       if (!rbd_req)
                return -ENOMEM;
-       }

        if (coll) {
                rbd_req->coll = coll;
@@ -1206,7 +1202,6 @@ done_err:
        bio_chain_put(rbd_req->bio);
        ceph_osdc_put_request(osd_req);
 done_pages:
-       rbd_coll_end_req(rbd_req, (s32) ret, len);
        kfree(rbd_req);
        return ret;
 }
@@ -1359,7 +1354,9 @@ static int rbd_do_op(struct request *rq,
                             ops,
                             coll, coll_index,
                             rbd_req_cb, 0, NULL);
-
+       if (ret < 0)
+               rbd_coll_end_req_index(rq, coll, coll_index,
+                                       (s32) ret, seg_len);
        rbd_destroy_ops(ops);
 done:
        kfree(seg_name);
-- 
1.7.9.5

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