From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> Date: Wed, 1 Nov 2017 14:56:15 +0100 Add a jump target so that a bit of exception handling can be better reused at the end of this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> --- v2: An approach to make two checks for a failure predicate a bit safer was rejected on 2017-10-28. The possibility remains to reconsider such an adjustment later again. https://lkml.org/lkml/2017/10/28/125 https://lkml.kernel.org/r/<264b3c2b-8354-5769-639c-ac8d2fcbe630@xxxxxxxxxxxx> drivers/net/can/vxcan.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/net/can/vxcan.c b/drivers/net/can/vxcan.c index 8404e8852a0f..5d1753cfacea 100644 --- a/drivers/net/can/vxcan.c +++ b/drivers/net/can/vxcan.c @@ -227,10 +227,8 @@ static int vxcan_newlink(struct net *net, struct net_device *dev, netif_carrier_off(peer); err = rtnl_configure_link(peer, ifmp); - if (err < 0) { - unregister_netdevice(peer); - return err; - } + if (err < 0) + goto unregister_network_device; /* register first device */ if (tb[IFLA_IFNAME]) @@ -239,10 +237,8 @@ static int vxcan_newlink(struct net *net, struct net_device *dev, snprintf(dev->name, IFNAMSIZ, DRV_NAME "%%d"); err = register_netdevice(dev); - if (err < 0) { - unregister_netdevice(peer); - return err; - } + if (err < 0) + goto unregister_network_device; netif_carrier_off(dev); @@ -254,6 +250,10 @@ static int vxcan_newlink(struct net *net, struct net_device *dev, rcu_assign_pointer(priv->peer, dev); return 0; + +unregister_network_device: + unregister_netdevice(peer); + return err; } static void vxcan_dellink(struct net_device *dev, struct list_head *head) -- 2.14.3 -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
