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-rw-r--r--net/ipv6/ip6mr.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 2dd8325..0b41aa2 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -443,6 +443,7 @@ static struct net_device *ip6mr_reg_vif(void)
if (dev_open(dev))
goto failure;
+ dev_hold(dev);
return dev;
failure:
@@ -616,6 +617,7 @@ static int mif6_add(struct mif6ctl *vifc, int mrtsock)
err = dev_set_allmulti(dev, 1);
if (err) {
unregister_netdevice(dev);
+ dev_put(dev);
return err;
}
break;
@@ -624,10 +626,11 @@ static int mif6_add(struct mif6ctl *vifc, int mrtsock)
dev = dev_get_by_index(&init_net, vifc->mif6c_pifi);
if (!dev)
return -EADDRNOTAVAIL;
- dev_put(dev);
err = dev_set_allmulti(dev, 1);
- if (err)
+ if (err) {
+ dev_put(dev);
return err;
+ }
break;
default:
return -EINVAL;
@@ -651,7 +654,6 @@ static int mif6_add(struct mif6ctl *vifc, int mrtsock)
/* And finish update writing critical data */
write_lock_bh(&mrt_lock);
- dev_hold(dev);
v->dev = dev;
#ifdef CONFIG_IPV6_PIMSM_V2
if (v->flags & MIFF_REGISTER)