From: Vasily Averin vvs@virtuozzo.com
[ 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@virtuozzo.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/net_failover.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/net_failover.c +++ b/drivers/net/net_failover.c @@ -61,7 +61,8 @@ static int net_failover_open(struct net_ 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;