linux-kernel - [PATCH] Fix an infinite retry-loop

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Message-Id: <1420394696-20099-1-git-send-email-me@mortis.eu>
Date:	Sun,  4 Jan 2015 19:04:55 +0100
From:	Giel van Schijndel <me@...tis.eu>
To:	linux-kernel@...r.kernel.org
Cc:	Giel van Schijndel <me@...tis.eu>,
	Jitendra Kalsaria <jitendra.kalsaria@...gic.com>,
	Ron Mercer <ron.mercer@...gic.com>,
	linux-driver@...gic.com (supporter:QLOGIC QLA3XXX NE...),
	netdev@...r.kernel.org (open list:QLOGIC QLA3XXX NE...)
Subject: [PATCH] Fix an infinite retry-loop

This was clearly intended as a retry-10-times loop, but due to the
absence of code incrementing the loop-counter it was practically a
retry-forever loop.

Rewritten it as a for-loop as well to make the loop-counter increment
(as well as its potential absence) easier to spot.
---
 drivers/net/ethernet/qlogic/qla3xxx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index c2f09af..35a26c9 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -144,9 +144,9 @@ static int ql_sem_lock(struct ql3_adapter *qdev, u32 sem_mask, u32 sem_bits)
  */
 static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev)
 {
-	int i = 0;
+	int i;
 
-	while (i < 10) {
+	for (i = 0; i < 10; ++i) {
 		if (i)
 			ssleep(1);
 
-- 
2.1.4

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