tree 0588a4d51146ea54ffc949bce9d2cc52d90943b1
parent f9d6b402603a63b5e5b56bd7a79fa72a818be55b
author Johannes Berg <johannes@sipsolutions.net> 1248683611 +0200
committer John W. Linville <linville@tuxdriver.com> 1248896773 -0400

mac80211: verify info->control.vif is not NULL

When enqueuing packets on the internal packet queue, we
need to ensure that we have a valid vif pointer since
that is required since the net namespace work. Add some
assertions to verify this, but also don't crash is for
some reason we don't end up with a vif pointer -- warn
and drop the packet in all these cases.

Since this code touches a number of hotpaths, it is
intended to be temporary, or maybe configurable in the
future, at least the bit that is in the path that gets
hit for every packet, ieee80211_tx_pending().

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>