diff options
| author | Andreas Gruenbacher <agruen@linbit.com> | 2013-06-25 16:50:05 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2013-06-28 16:04:36 +0200 |
| commit | f9eb7bf424e766e00bbc6d69fd7eaaf4bd003cf9 (patch) | |
| tree | 38ff024994e67c9bfaf8ae9a6b4d86a0e12327a3 | |
| parent | 6110d70bdf99f9d0448f1f61798542e3b123b42a (diff) | |
drbd: Fix rcu_read_lock balance on error path
Signed-off-by: Andreas Gruenbacher <agruen@linbit.com>
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 9e3f441e7e84..0936d6aabef9 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2658,7 +2658,6 @@ int nla_put_status_info(struct sk_buff *skb, struct drbd_conf *mdev, const struct sib_info *sib) { struct state_info *si = NULL; /* for sizeof(si->member); */ - struct net_conf *nc; struct nlattr *nla; int got_ldev; int err = 0; @@ -2688,13 +2687,19 @@ int nla_put_status_info(struct sk_buff *skb, struct drbd_conf *mdev, goto nla_put_failure; rcu_read_lock(); - if (got_ldev) - if (disk_conf_to_skb(skb, rcu_dereference(mdev->ldev->disk_conf), exclude_sensitive)) - goto nla_put_failure; + if (got_ldev) { + struct disk_conf *disk_conf; - nc = rcu_dereference(mdev->tconn->net_conf); - if (nc) - err = net_conf_to_skb(skb, nc, exclude_sensitive); + disk_conf = rcu_dereference(mdev->ldev->disk_conf); + err = disk_conf_to_skb(skb, disk_conf, exclude_sensitive); + } + if (!err) { + struct net_conf *nc; + + nc = rcu_dereference(mdev->tconn->net_conf); + if (nc) + err = net_conf_to_skb(skb, nc, exclude_sensitive); + } rcu_read_unlock(); if (err) goto nla_put_failure; |