diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-01-26 14:02:55 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-03 09:22:18 -0800 |
| commit | 952f4da950ba3659f0893a92704141d84662b454 (patch) | |
| tree | 747f614bce3b77c402f0a65598f4dfde15aa3ffc /net/caif/cfcnfg.c | |
| parent | a2c82f7bee1ffa9eafa1fb0bd886a7eea8c9e497 (diff) | |
netns: Fail conspicously if someone uses net_generic at an inappropriate time.
[ Upstream commit 5ee4433efe99b9f39f6eff5052a177bbcfe72cea ]
By definition net_generic should never be called when it can return
NULL. Fail conspicously with a BUG_ON to make it clear when people mess
up that a NULL return should never happen.
Recently there was a bug in the CAIF subsystem where it was registered
with register_pernet_device instead of register_pernet_subsys. It was
erroneously concluded that net_generic could validly return NULL and
that net_assign_generic was buggy (when it was just inefficient).
Hopefully this BUG_ON will prevent people to coming to similar erroneous
conclusions in the futrue.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Tested-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/caif/cfcnfg.c')
0 files changed, 0 insertions, 0 deletions