linux-kernel - [PATCH AUTOSEL 5.7 110/388] ibmvnic: Flush existing work items before device removal

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Date:   Wed, 17 Jun 2020 21:03:27 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Thomas Falcon <tlfalcon@...ux.ibm.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>, netdev@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH AUTOSEL 5.7 110/388] ibmvnic: Flush existing work items before device removal

From: Thomas Falcon <tlfalcon@...ux.ibm.com>

[ Upstream commit 6954a9e4192b86d778fb52b525fd7b62d51b1147 ]

Ensure that all scheduled work items have completed before continuing
with device removal and after further event scheduling has been
halted. This patch fixes a bug where a scheduled driver reset event
is processed following device removal.

Signed-off-by: Thomas Falcon <tlfalcon@...ux.ibm.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/ibm/ibmvnic.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 197dc5b2c090..1b4d04e4474b 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -5184,6 +5184,9 @@ static int ibmvnic_remove(struct vio_dev *dev)
 	adapter->state = VNIC_REMOVING;
 	spin_unlock_irqrestore(&adapter->state_lock, flags);
 
+	flush_work(&adapter->ibmvnic_reset);
+	flush_delayed_work(&adapter->ibmvnic_delayed_reset);
+
 	rtnl_lock();
 	unregister_netdevice(netdev);
 
-- 
2.25.1