]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
net: inet_diag -- Return error code if protocol handler is missed
authorCyrill Gorcunov <gorcunov@openvz.org>
Sat, 3 Nov 2012 09:30:34 +0000 (09:30 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sun, 4 Nov 2012 05:56:49 +0000 (01:56 -0400)
commitcacb6ba0f36ab14a507f4ee7697e8332899015d2
tree824b41fdf7241048a9a5529d87cda49245e40d6d
parentefc7ce0334b68387b48baf16a285a9b1d5c19256
net: inet_diag -- Return error code if protocol handler is missed

We've observed that in case if UDP diag module is not
supported in kernel the netlink returns NLMSG_DONE without
notifying a caller that handler is missed.

This patch makes __inet_diag_dump to return error code instead.

So as example it become possible to detect such situation
and handle it gracefully on userspace level.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
CC: David Miller <davem@davemloft.net>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/inet_diag.c