[PATCH] RDMA/siw: fix refcounting leak in siw_create_qp()

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The atomic_inc() needs to be paired with an atomic_dec() on the error
path.

Fixes: 514aee660df4 ("RDMA: Globally allocate and release QP memory")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
 drivers/infiniband/sw/siw/siw_verbs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/sw/siw/siw_verbs.c b/drivers/infiniband/sw/siw/siw_verbs.c
index a3dd2cb6d5c9..54ef367b074a 100644
--- a/drivers/infiniband/sw/siw/siw_verbs.c
+++ b/drivers/infiniband/sw/siw/siw_verbs.c
@@ -313,7 +313,8 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs,
 
 	if (atomic_inc_return(&sdev->num_qp) > SIW_MAX_QP) {
 		siw_dbg(base_dev, "too many QP's\n");
-		return -ENOMEM;
+		rv = -ENOMEM;
+		goto err_atomic;
 	}
 	if (attrs->qp_type != IB_QPT_RC) {
 		siw_dbg(base_dev, "only RC QP's supported\n");
-- 
2.20.1




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