linux-kernel - [PATCH 4.19 23/91] ibmvnic: Do not close unopened driver during reset

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Message-Id: <20190712121622.637816904@linuxfoundation.org>
Date:   Fri, 12 Jul 2019 14:18:26 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Thomas Falcon <tlfalcon@...ux.ibm.com>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 23/91] ibmvnic: Do not close unopened driver during reset

[ Upstream commit 1f94608b0ce141be5286dde31270590bdf35b86a ]

Check driver state before halting it during a reset. If the driver is
not running, do nothing. Otherwise, a request to deactivate a down link
can cause an error and the reset will fail.

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, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index 426789e2c23d..bf0a5fe0da17 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1754,7 +1754,8 @@ static int do_reset(struct ibmvnic_adapter *adapter,
 
 	ibmvnic_cleanup(netdev);
 
-	if (adapter->reset_reason != VNIC_RESET_MOBILITY &&
+	if (reset_state == VNIC_OPEN &&
+	    adapter->reset_reason != VNIC_RESET_MOBILITY &&
 	    adapter->reset_reason != VNIC_RESET_FAILOVER) {
 		rc = __ibmvnic_close(netdev);
 		if (rc)
-- 
2.20.1