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| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-01-26 18:02:55 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-01-28 06:06:02 +0400 |
| commit | 5ee4433efe99b9f39f6eff5052a177bbcfe72cea (patch) | |
| tree | 0be8ae9b59828b3fee0fdf5cac9432604a317230 /include/net/dn_fib.h | |
| parent | cc0d7b91db000aef1cc12f1d3d4d7f80af9bd419 (diff) | |
| download | linux-5ee4433efe99b9f39f6eff5052a177bbcfe72cea.tar.xz | |
netns: Fail conspicously if someone uses net_generic at an inappropriate time.
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>
Diffstat (limited to 'include/net/dn_fib.h')
0 files changed, 0 insertions, 0 deletions