gre: fix netns vs proto registration ordering
commitc2892f02712e9516d72841d5c019ed6916329794
authorAlexey Dobriyan <adobriyan@gmail.com>
Tue, 16 Feb 2010 07:57:44 +0000 (16 07:57 +0000)
committerDavid S. Miller <davem@davemloft.net>
Tue, 16 Feb 2010 22:55:21 +0000 (16 14:55 -0800)
treef6da925f46344ea4f1e3a7887aca4e62be6ea3ff
parent749f621e20ab0db35a15ff730088922603c809ba
gre: fix netns vs proto registration ordering

GRE protocol receive hook can be called right after protocol addition is done.
If netns stuff is not yet initialized, we're going to oops in
net_generic().

This is remotely oopsable if ip_gre is compiled as module and packet
comes at unfortunate moment of module loading.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/ip_gre.c