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authorTariq Toukan <tariqt@mellanox.com>2016-10-27 16:36:26 +0300
committerDoug Ledford <dledford@redhat.com>2016-11-16 20:03:44 -0500
commit5b810a242c28e1d8d64d718cebe75b79d86a0b2d (patch)
treef767f7da2c8d3c27866a813a6facdfcffa853f0c
parenta909d3e636995ba7c349e2ca5dbb528154d4ac30 (diff)
downloadlinux-5b810a242c28e1d8d64d718cebe75b79d86a0b2d.tar.gz
IB/uverbs: Fix leak of XRC target QPs
The real QP is destroyed in case of the ref count reaches zero, but for XRC target QPs this call was missed and caused to QP leaks. Let's call to destroy for all flows. Fixes: 0e0ec7e0638e ('RDMA/core: Export ib_open_qp() to share XRC...') Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Noa Osherovich <noaos@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--drivers/infiniband/core/uverbs_main.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 0012fa58c105de..44b1104eb168e5 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -262,12 +262,9 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
container_of(uobj, struct ib_uqp_object, uevent.uobject);
idr_remove_uobj(&ib_uverbs_qp_idr, uobj);
- if (qp != qp->real_qp) {
- ib_close_qp(qp);
- } else {
+ if (qp == qp->real_qp)
ib_uverbs_detach_umcast(qp, uqp);
- ib_destroy_qp(qp);
- }
+ ib_destroy_qp(qp);
ib_uverbs_release_uevent(file, &uqp->uevent);
kfree(uqp);
}