]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
llc: Fix races between llc2 handler use and (un)registration
authorBen Hutchings <ben@decadent.org.uk>
Mon, 13 Aug 2012 02:50:55 +0000 (02:50 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 14 Aug 2012 23:52:02 +0000 (16:52 -0700)
commitaadf31de16a7b2878af00a02e6557df84efa784b
tree8ad3aa78fdabdc1c60e5608b342ec1782eb72513
parentf4f8720febf0d785a054fc09bde5e3ad09728a58
llc: Fix races between llc2 handler use and (un)registration

When registering the handlers, any state they rely on must be
completely initialised first.  When unregistering, we must wait until
they are definitely no longer running.  llc_rcv() must also avoid
reading the handler pointers again after checking for NULL.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/llc/llc_input.c
net/llc/llc_station.c