* [PATCH] net_failover: fixed rollback in net_failover_open()
@ 2020-06-02 12:55 Vasily Averin
2020-06-02 22:36 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Vasily Averin @ 2020-06-02 12:55 UTC (permalink / raw)
To: netdev; +Cc: Sridhar Samudrala, David S. Miller, Jakub Kicinski
found by smatch:
drivers/net/net_failover.c:65 net_failover_open() error:
we previously assumed 'primary_dev' could be null (see line 43)
cc: stable@vger.kernel.org
Fixes: cfc80d9a1163 ("net: Introduce net_failover driver")
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
---
drivers/net/net_failover.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/net_failover.c b/drivers/net/net_failover.c
index b16a122..fb182be 100644
--- a/drivers/net/net_failover.c
+++ b/drivers/net/net_failover.c
@@ -61,7 +61,8 @@ static int net_failover_open(struct net_device *dev)
return 0;
err_standby_open:
- dev_close(primary_dev);
+ if (primary_dev)
+ dev_close(primary_dev);
err_primary_open:
netif_tx_disable(dev);
return err;
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] net_failover: fixed rollback in net_failover_open()
2020-06-02 12:55 [PATCH] net_failover: fixed rollback in net_failover_open() Vasily Averin
@ 2020-06-02 22:36 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2020-06-02 22:36 UTC (permalink / raw)
To: vvs; +Cc: netdev, sridhar.samudrala, kuba
From: Vasily Averin <vvs@virtuozzo.com>
Date: Tue, 2 Jun 2020 15:55:26 +0300
> found by smatch:
> drivers/net/net_failover.c:65 net_failover_open() error:
> we previously assumed 'primary_dev' could be null (see line 43)
>
> cc: stable@vger.kernel.org
> Fixes: cfc80d9a1163 ("net: Introduce net_failover driver")
> Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Do not CC: stable for networking patches in the future please.
Applied, and queued up for -stable, thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-06-02 12:55 [PATCH] net_failover: fixed rollback in net_failover_open() Vasily Averin
2020-06-02 22:36 ` David Miller
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