Q_FREECNT() returns the number of spaces free. This should never
be a negative amount. Also the num_wrs is an unsigned int so it can
never be less than zero.
Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>
---
In v1: I changed num_wrs to a signed int.
diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index ae47bfd..6adc13f 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -371,7 +371,7 @@ int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
}
num_wrs = Q_FREECNT(qhp->wq.sq_rptr, qhp->wq.sq_wptr,
qhp->wq.sq_size_log2);
- if (num_wrs <= 0) {
+ if (num_wrs == 0) {
spin_unlock_irqrestore(&qhp->lock, flag);
err = -ENOMEM;
goto out;
@@ -554,7 +554,7 @@ int iwch_bind_mw(struct ib_qp *qp,
}
num_wrs = Q_FREECNT(qhp->wq.sq_rptr, qhp->wq.sq_wptr,
qhp->wq.sq_size_log2);
- if ((num_wrs) <= 0) {
+ if (num_wrs == 0) {
spin_unlock_irqrestore(&qhp->lock, flag);
return -ENOMEM;
}
--
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