From: Eric W. Biederman Date: Thu, 26 Jan 2012 14:02:55 +0000 (+0000) Subject: netns: Fail conspicously if someone uses net_generic at an inappropriate time. X-Git-Tag: v3.3-rc2~6^2~4 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ee4433efe99b9f39f6eff5052a177bbcfe72cea;p=pandora-kernel.git 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 Tested-by: Sasha Levin Signed-off-by: David S. Miller --- Reading git-diff-tree failed