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From: "Dmitry Kravkov" <dmitry@broadcom.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Cc: eilong@broadcom.com, "Yuval Mintz" <yuvalmin@broadcom.com>,
	"Dmitry Kravkov" <dmitry@broadcom.com>,
	"Ariel Elior" <ariele@broadcom.com>
Subject: [PATCH net v5 5/5] bnx2x: prevent crash in shutdown flow with CNIC
Date: Tue, 13 Aug 2013 02:25:03 +0300	[thread overview]
Message-ID: <1376349903-3461-6-git-send-email-dmitry@broadcom.com> (raw)
In-Reply-To: <1376349903-3461-1-git-send-email-dmitry@broadcom.com>

From: Yuval Mintz <yuvalmin@broadcom.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@broadcom.com>
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.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 339c388..955d6cf 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12838,8 +12838,7 @@ 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

  parent reply	other threads:[~2013-08-12 23:25 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-08-12 23:24 [PATCH net v5 0/5] bnx2x: fixes Dmitry Kravkov
2013-08-12 23:24 ` [PATCH net v5 1/5] bnx2x: protect different statistics flows Dmitry Kravkov
2013-08-13  0:12   ` Stephen Hemminger
2013-08-13  4:24     ` David Miller
2013-08-13 17:57       ` Stephen Hemminger
2013-08-13 17:54   ` Neal Cardwell
2013-08-12 23:25 ` [PATCH net v5 2/5] bnx2x: update fairness parameters following DCB negotiation Dmitry Kravkov
2013-08-12 23:25 ` [PATCH net v5 3/5] bnx2x: fix memory leak in VF Dmitry Kravkov
2013-08-12 23:25 ` [PATCH net v5 4/5] bnx2x: fix PTE write access error Dmitry Kravkov
2013-08-12 23:25 ` Dmitry Kravkov [this message]
2013-08-13 12:30 ` [PATCH net v5 0/5] bnx2x: fixes Benjamin Poirier
2013-08-13 12:38   ` Ariel Elior
2013-08-13 14:07     ` Benjamin Poirier
2013-08-13 14:16       ` Dmitry Kravkov
2013-08-13 17:44         ` Benjamin Poirier
2013-08-13 23:04 ` David Miller

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