pull request: wireless-2.6 2009-03-20

From: John W. Linville
Date: Fri Mar 20 2009 - 16:30:52 EST


Dave,

One last(?) straggler for 2.6.29 -- avoid a NULL function pointer
dereference when processing certain nl80211 messages...

Please let me know if there are problems!

Thanks,

John

---

Individual patch is available here:

http://www.kernel.org/pub/linux/kernel/people/linville/wireless-2.6/

---

The following changes since commit 170ebf85160dd128e1c4206cc197cce7d1424705:
Tilman Schmidt (1):
bas_gigaset: correctly allocate USB interrupt transfer buffer

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git master

Jouni Malinen (1):
nl80211: Check that function pointer != NULL before using it

net/wireless/nl80211.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1e728ff..31b807a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1908,6 +1908,11 @@ static int nl80211_get_mesh_params(struct sk_buff *skb,
if (err)
return err;

+ if (!drv->ops->get_mesh_params) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
/* Get the mesh params */
rtnl_lock();
err = drv->ops->get_mesh_params(&drv->wiphy, dev, &cur_params);
@@ -2017,6 +2022,11 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
if (err)
return err;

+ if (!drv->ops->set_mesh_params) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
/* This makes sure that there aren't more than 32 mesh config
* parameters (otherwise our bitfield scheme would not work.) */
BUILD_BUG_ON(NL80211_MESHCONF_ATTR_MAX > 32);
@@ -2061,6 +2071,7 @@ static int nl80211_set_mesh_params(struct sk_buff *skb, struct genl_info *info)
err = drv->ops->set_mesh_params(&drv->wiphy, dev, &cfg, mask);
rtnl_unlock();

+ out:
/* cleanup */
cfg80211_put_dev(drv);
dev_put(dev);
--
John W. Linville Someday the world will need a hero, and you
linville@xxxxxxxxxxxxx might be all we have. Be ready.
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