netdev - [PATCH net-next] net/sched: add missing tracker information in qdisc

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Date:   Tue,  4 Jan 2022 09:04:39 -0800
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Eric Dumazet <eric.dumazet@...il.com>
Subject: [PATCH net-next] net/sched: add missing tracker information in qdisc_create()

From: Eric Dumazet <edumazet@...gle.com>

qdisc_create() error path needs to use dev_put_track()
because qdisc_alloc() allocated the tracker.

Fixes: 606509f27f67 ("net/sched: add net device refcount tracker to struct Qdisc")
Signed-off-by: Eric Dumazet <edumazet@...gle.com>
---
 net/sched/sch_api.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index efcd0b5e9a323bfc19a0ac09e8e4c357170029fb..c9c6f49f9c284f57b2f3e637160e37af2b125dbb 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1292,7 +1292,7 @@ static struct Qdisc *qdisc_create(struct net_device *dev,
 	if (ops->destroy)
 		ops->destroy(sch);
 err_out3:
-	dev_put(dev);
+	dev_put_track(dev, &sch->dev_tracker);
 	qdisc_free(sch);
 err_out2:
 	module_put(ops->owner);
-- 
2.34.1.448.ga2b2bfdf31-goog