linux-kernel - [PATCH 1/9] ntb_netdev: Fix list_for_each

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Message-Id: <1396918374-5196-2-git-send-email-jon.mason@intel.com>
Date:	Mon,  7 Apr 2014 17:52:46 -0700
From:	Jon Mason <jon.mason@...el.com>
To:	linux-kernel@...r.kernel.org
Subject: [PATCH 1/9] ntb_netdev: Fix list_for_each_entry exit issue

If list_for_each_entry exits without finding the ntb_device, the dev
pointer will not be NULL.  Thus the check will never be true and the
code will not exit when it should.  Correct this by adding a bool to
determine when the device is found, otherwise exit in good fashion.

Signed-off-by: Jon Mason <jon.mason@...el.com>
---
 drivers/net/ntb_netdev.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c
index f3cdf64..8298880 100644
--- a/drivers/net/ntb_netdev.c
+++ b/drivers/net/ntb_netdev.c
@@ -367,12 +367,15 @@ static void ntb_netdev_remove(struct pci_dev *pdev)
 {
 	struct net_device *ndev;
 	struct ntb_netdev *dev;
+	bool found  = false;
 
 	list_for_each_entry(dev, &dev_list, list) {
-		if (dev->pdev == pdev)
+		if (dev->pdev == pdev) {
+			found = true;
 			break;
+		}
 	}
-	if (dev == NULL)
+	if (!found)
 		return;
 
 	list_del(&dev->list);
-- 
1.8.3.2

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