All of lore.kernel.org
 help / color / mirror / Atom feed
From: Dan Carpenter <error27@gmail.com>
To: Steve Wise <swise-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
Cc: Roland Dreier <rolandd-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>,
	Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Hal Rosenstock
	<hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Frank Zago
	<fzago-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [patch] infiniband: cxgb3: fix signed bug
Date: Sat, 17 Jul 2010 10:29:00 +0000	[thread overview]
Message-ID: <20100717102900.GG17585@bicker> (raw)

"num_wrs" should be signed so that the "if (num_wrs <= 0)" checks work.

Signed-off-by: Dan Carpenter <error27@gmail.com>

diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index ae47bfd..e90fb2d 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -357,7 +357,7 @@ int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 	struct iwch_qp *qhp;
 	u32 idx;
 	union t3_wr *wqe;
-	u32 num_wrs;
+	int num_wrs;
 	unsigned long flag;
 	struct t3_swsq *sqp;
 	int wr_cnt = 1;
@@ -535,7 +535,7 @@ int iwch_bind_mw(struct ib_qp *qp,
 	union t3_wr *wqe;
 	u32 pbl_addr;
 	u8 page_size;
-	u32 num_wrs;
+	int num_wrs;
 	unsigned long flag;
 	struct ib_sge sgl;
 	int err=0;
@@ -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;
 	}

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <error27-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Steve Wise <swise-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org>
Cc: Roland Dreier <rolandd-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>,
	Sean Hefty <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Hal Rosenstock
	<hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
	Frank Zago
	<fzago-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org>,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [patch] infiniband: cxgb3: fix signed bug
Date: Sat, 17 Jul 2010 12:29:00 +0200	[thread overview]
Message-ID: <20100717102900.GG17585@bicker> (raw)

"num_wrs" should be signed so that the "if (num_wrs <= 0)" checks work.

Signed-off-by: Dan Carpenter <error27-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index ae47bfd..e90fb2d 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -357,7 +357,7 @@ int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 	struct iwch_qp *qhp;
 	u32 idx;
 	union t3_wr *wqe;
-	u32 num_wrs;
+	int num_wrs;
 	unsigned long flag;
 	struct t3_swsq *sqp;
 	int wr_cnt = 1;
@@ -535,7 +535,7 @@ int iwch_bind_mw(struct ib_qp *qp,
 	union t3_wr *wqe;
 	u32 pbl_addr;
 	u8 page_size;
-	u32 num_wrs;
+	int num_wrs;
 	unsigned long flag;
 	struct ib_sge sgl;
 	int err=0;
@@ -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;
 	}
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

             reply	other threads:[~2010-07-17 10:29 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-07-17 10:29 Dan Carpenter [this message]
2010-07-17 10:29 ` [patch] infiniband: cxgb3: fix signed bug Dan Carpenter
2010-07-19 14:45 ` Steve Wise
2010-07-19 14:45   ` Steve Wise
     [not found]   ` <4C446509.3010400-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2010-07-19 20:30     ` [patch v2] infiniband: cxgb3: clean up signed check Dan Carpenter
2010-07-19 20:30       ` Dan Carpenter
2010-07-19 22:17       ` Steve Wise
2010-07-19 22:17         ` Steve Wise
2010-07-21 17:57       ` Roland Dreier
2010-07-21 17:57         ` Roland Dreier

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20100717102900.GG17585@bicker \
    --to=error27@gmail.com \
    --cc=fzago-klaOcWyJdxkshyMvu7JE4pqQE7yCjDx5@public.gmane.org \
    --cc=hal.rosenstock-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
    --cc=kernel-janitors-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
    --cc=rolandd-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org \
    --cc=sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org \
    --cc=swise-ut6Up61K2wZBDgjK7y7TUQ@public.gmane.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.