[PATCH v2 1/2] RDMA/erdma: initialize ret for empty receive WR lists

[Ruoyu Wang <ruoyuw560@gmail.com>]

erdma_post_recv() returns ret after walking the receive work request list.
If the caller passes an empty list, the loop is skipped and ret is not
assigned.

Initialize ret to 0 so an empty receive work request list returns success
instead of stack data.

Fixes: 155055771704 ("RDMA/erdma: Add verbs implementation")
Signed-off-by: Ruoyu Wang <ruoyuw560@gmail.com>
---
v2:
- Split the erdma and mana_ib changes into separate patches.
- Add a driver-specific Fixes tag.

 drivers/infiniband/hw/erdma/erdma_qp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/erdma/erdma_qp.c b/drivers/infiniband/hw/erdma/erdma_qp.c
index 25f6c49aec779..e002343832f74 100644
--- a/drivers/infiniband/hw/erdma/erdma_qp.c
+++ b/drivers/infiniband/hw/erdma/erdma_qp.c
@@ -734,7 +734,7 @@ int erdma_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *recv_wr,
 	const struct ib_recv_wr *wr = recv_wr;
 	struct erdma_qp *qp = to_eqp(ibqp);
 	unsigned long flags;
-	int ret;
+	int ret = 0;
 
 	spin_lock_irqsave(&qp->lock, flags);
 
-- 
2.51.0