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IB/uverbs: Fix reference counting on error paths 

If an operation fails after incrementing an object's reference count,
then it should decrement the reference count on the error path.

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Jack Morgenstein 2006-01-06 16:21:19 -08:00 committed by Roland Dreier
parent 4de144bf72
commit b4ca1a3f8c
1 changed files with 7 additions and 0 deletions
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7
drivers/infiniband/core/uverbs_cmd.c
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@ -489,6 +489,7 @@ err_idr:
err_unreg:
ib_dereg_mr(mr);
atomic_dec(&pd->usecnt);
err_up:
up(&ib_uverbs_idr_mutex);
@ -935,6 +936,11 @@ err_idr:
err_destroy:
ib_destroy_qp(qp);
atomic_dec(&pd->usecnt);
atomic_dec(&attr.send_cq->usecnt);
atomic_dec(&attr.recv_cq->usecnt);
if (attr.srq)
atomic_dec(&attr.srq->usecnt);
err_up:
up(&ib_uverbs_idr_mutex);
@ -1729,6 +1735,7 @@ err_idr:
err_destroy:
ib_destroy_srq(srq);
atomic_dec(&pd->usecnt);
err_up:
up(&ib_uverbs_idr_mutex);