diff mbox

rtnl: reset calcit fptr in rtnl_unregister()

Message ID 1478557339-16039-1-git-send-email-minipli@googlemail.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Mathias Krause Nov. 7, 2016, 10:22 p.m. UTC
To avoid having dangling function pointers left behind, reset calcit in
rtnl_unregister(), too.

This is no issue so far, as only the rtnl core registers a netlink
handler with a calcit hook which won't be unregistered, but may become
one if new code makes use of the calcit hook.

Fixes: c7ac8679bec9 ("rtnetlink: Compute and store minimum ifinfo...")
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Mathias Krause <minipli@googlemail.com>
---
 net/core/rtnetlink.c |    1 +
 1 file changed, 1 insertion(+)

Comments

David Miller Nov. 10, 2016, 1:18 a.m. UTC | #1
From: Mathias Krause <minipli@googlemail.com>
Date: Mon,  7 Nov 2016 23:22:19 +0100

> To avoid having dangling function pointers left behind, reset calcit in
> rtnl_unregister(), too.
> 
> This is no issue so far, as only the rtnl core registers a netlink
> handler with a calcit hook which won't be unregistered, but may become
> one if new code makes use of the calcit hook.
> 
> Fixes: c7ac8679bec9 ("rtnetlink: Compute and store minimum ifinfo...")
> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
> Cc: Greg Rose <gregory.v.rose@intel.com>
> Signed-off-by: Mathias Krause <minipli@googlemail.com>

Applied, thanks.
diff mbox

Patch

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 189cc78c77eb..d4c601604bf7 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -275,6 +275,7 @@  int rtnl_unregister(int protocol, int msgtype)
 
 	rtnl_msg_handlers[protocol][msgindex].doit = NULL;
 	rtnl_msg_handlers[protocol][msgindex].dumpit = NULL;
+	rtnl_msg_handlers[protocol][msgindex].calcit = NULL;
 
 	return 0;
 }