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RDMA/cxgb3: Clean up signed check of unsigned variable 

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@gmail.com>
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Dan Carpenter 2010-07-19 20:30:14 +00:00 committed by Roland Dreier
parent 589643be66
commit 3d4f9a28e0
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/hw/cxgb3/iwch_qp.c
View File

@ -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, num_wrs = Q_FREECNT(qhp->wq.sq_rptr, qhp->wq.sq_wptr,
qhp->wq.sq_size_log2); qhp->wq.sq_size_log2);
if (num_wrs <= 0) { if (num_wrs == 0) {
spin_unlock_irqrestore(&qhp->lock, flag); spin_unlock_irqrestore(&qhp->lock, flag);
err = -ENOMEM; err = -ENOMEM;
goto out; 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, num_wrs = Q_FREECNT(qhp->wq.sq_rptr, qhp->wq.sq_wptr,
qhp->wq.sq_size_log2); qhp->wq.sq_size_log2);
if ((num_wrs) <= 0) { if (num_wrs == 0) {
spin_unlock_irqrestore(&qhp->lock, flag); spin_unlock_irqrestore(&qhp->lock, flag);
return -ENOMEM; return -ENOMEM;
} }