tree 3991d9209ddf2454ba4c71daccdc33951811dcf1
parent 2cf6c36cb46d69057db2ebae0d8ec352e065f48b
author Patrick McHardy <kaber@trash.net> 1170314200 -0800
committer David S. Miller <davem@sunset.davemloft.net> 1170967121 -0800

[NETLINK]: Don't BUG on undersized allocations

Currently netlink users BUG when the allocated skb for an event
notification is undersized. While this is certainly a kernel bug,
its not critical and crashing the kernel is too drastic, especially
when considering that these errors have appeared multiple times in
the past and it BUGs even if no listeners are present.

This patch replaces BUG by WARN_ON and changes the notification
functions to inform potential listeners of undersized allocations
using a unique error code (EMSGSIZE).

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>