netdev - [PATCH net v4 6/6] bnx2x: prevent crash in shutdown flow with CNIC

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Message-ID: <1375738544-8695-7-git-send-email-dmitry@broadcom.com>
Date:	Tue, 6 Aug 2013 00:35:44 +0300
From:	"Dmitry Kravkov" <dmitry@...adcom.com>
To:	davem@...emloft.net, netdev@...r.kernel.org
cc:	eilong@...adcom.com, "Yuval Mintz" <yuvalmin@...adcom.com>,
	"Dmitry Kravkov" <dmitry@...adcom.com>,
	"Ariel Elior" <ariele@...adcom.com>
Subject: [PATCH net v4 6/6] bnx2x: prevent crash in shutdown flow with
 CNIC

From: Yuval Mintz <yuvalmin@...adcom.com>

There might be a crash as during shutdown flow CNIC might try
to access resources already freed by bnx2x.
Change bnx2x_close() into dev_close() in __bnx2x_remove (shutdown flow)
to guarantee CNIC is notified of the device's change of status.

Signed-off-by: Yuval Mintz <yuvalmin@...adcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@...adcom.com>
Signed-off-by: Ariel Elior <ariele@...adcom.com>
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 5c22081..abafb30 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12837,8 +12837,7 @@ static void __bnx2x_remove(struct pci_dev *pdev,
 		unregister_netdev(dev);
 	} else {
 		rtnl_lock();
-		if (netif_running(dev))
-			bnx2x_close(dev);
+		dev_close(dev);
 		rtnl_unlock();
 	}
 
-- 
1.8.1.4


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