From: Vasily Averin <vvs@xxxxxxxxxxxxx>
[ Upstream commit e8224bfe77293494626f6eec1884fee7b87d0ced ]
found by smatch:
drivers/net/net_failover.c:65 net_failover_open() error:
we previously assumed 'primary_dev' could be null (see line 43)
Fixes: cfc80d9a1163 ("net: Introduce net_failover driver")
Signed-off-by: Vasily Averin <vvs@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 b16a1221d19b..fb182bec8f06 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;
--
2.25.1
