From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 18 Apr 2016 19:19:42 +0000 (+0200)
Subject: benet: be_resume needs to protect be_open with rtnl_lock
X-Git-Tag: MMI-PSA29.97-13-9~7934^2~224^2~6
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=08d9910c3408531473766ec4d8b288e8ee2fe500;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git

benet: be_resume needs to protect be_open with rtnl_lock

be_open calls down to functions which expects rtnl lock to be held.

Cc: Sathya Perla <sathya.perla@broadcom.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>
Cc: Padmanabh Ratnakar <padmanabh.ratnakar@broadcom.com>
Cc: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Cc: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 536686476369..ed98ef1ecac3 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4890,11 +4890,13 @@ static int be_resume(struct be_adapter *adapter)
 	if (status)
 		return status;
 
-	if (netif_running(netdev)) {
+	rtnl_lock();
+	if (netif_running(netdev))
 		status = be_open(netdev);
-		if (status)
-			return status;
-	}
+	rtnl_unlock();
+
+	if (status)
+		return status;
 
 	netif_device_attach(netdev);