linux-kernel - [PATCH 5.7 088/120] ionic: unlock queue mutex in error path

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Date:   Mon,  3 Aug 2020 14:19:06 +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, kernel test robot <lkp@...el.com>,
        Julia Lawall <julia.lawall@...6.fr>,
        Shannon Nelson <snelson@...sando.io>,
        "David S. Miller" <davem@...emloft.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.7 088/120] ionic: unlock queue mutex in error path

From: Shannon Nelson <snelson@...sando.io>

[ Upstream commit 59929fbb45e06da7d501d3a97f10a91912181f7c ]

On an error return, jump to the unlock at the end to be sure
to unlock the queue_lock mutex.

Fixes: 0925e9db4dc8 ("ionic: use mutex to protect queue operations")
Reported-by: kernel test robot <lkp@...el.com>
Reported-by: Julia Lawall <julia.lawall@...6.fr>
Signed-off-by: Shannon Nelson <snelson@...sando.io>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/pensando/ionic/ionic_lif.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 2c3e9ef22129c..337d971ffd92c 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -1959,7 +1959,7 @@ int ionic_reset_queues(struct ionic_lif *lif, ionic_reset_cb cb, void *arg)
 		netif_device_detach(lif->netdev);
 		err = ionic_stop(lif->netdev);
 		if (err)
-			return err;
+			goto reset_out;
 	}
 
 	if (cb)
@@ -1969,6 +1969,8 @@ int ionic_reset_queues(struct ionic_lif *lif, ionic_reset_cb cb, void *arg)
 		err = ionic_open(lif->netdev);
 		netif_device_attach(lif->netdev);
 	}
+
+reset_out:
 	mutex_unlock(&lif->queue_lock);
 
 	return err;
-- 
2.25.1