netdev - [PATCH net-next 2/7] fm10k: protect fm10k_open in fm10k_io_resume with rtnl

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Message-Id: <1461007188-1603-3-git-send-email-hannes@stressinduktion.org>
Date:	Mon, 18 Apr 2016 21:19:43 +0200
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
To:	netdev@...r.kernel.org
Cc:	jesse@...nel.org, Jeff Kirsher <jeffrey.t.kirsher@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Shannon Nelson <shannon.nelson@...el.com>,
	Carolyn Wyborny <carolyn.wyborny@...el.com>,
	Don Skidmore <donald.c.skidmore@...el.com>,
	Bruce Allan <bruce.w.allan@...el.com>,
	John Ronciak <john.ronciak@...el.com>,
	Mitch Williams <mitch.a.williams@...el.com>
Subject: [PATCH net-next 2/7] fm10k: protect fm10k_open in fm10k_io_resume with rtnl_lock

fm10k_open requires rtnl_lock to be held.

Cc: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>
Cc: Shannon Nelson <shannon.nelson@...el.com>
Cc: Carolyn Wyborny <carolyn.wyborny@...el.com>
Cc: Don Skidmore <donald.c.skidmore@...el.com>
Cc: Bruce Allan <bruce.w.allan@...el.com>
Cc: John Ronciak <john.ronciak@...el.com>
Cc: Mitch Williams <mitch.a.williams@...el.com>
Signed-off-by: Hannes Frederic Sowa <hannes@...essinduktion.org>
---
 drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
index f0992950e228eb..04304d9a633935 100644
--- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
+++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c
@@ -2362,8 +2362,10 @@ static void fm10k_io_resume(struct pci_dev *pdev)
 	/* reset clock */
 	fm10k_ts_reset(interface);
 
+	rtnl_lock();
 	if (netif_running(netdev))
 		err = fm10k_open(netdev);
+	rtnl_unlock();
 
 	/* final check of hardware state before registering the interface */
 	err = err ? : fm10k_hw_ready(interface);
-- 
2.5.5