In commit cf6f7e1d5109 ("tipc: dump monitor attributes"),
I dereferenced a pointer before checking if its valid.
This is reported by static check Smatch as:
net/tipc/monitor.c:733 tipc_nl_add_monitor_peer()
warn: variable dereferenced before check 'mon' (see line 731)
In this commit, we check
From: Parthasarathy Bhuvaragan
Date: Wed, 10 Aug 2016 14:07:34 +0200
> In commit cf6f7e1d5109 ("tipc: dump monitor attributes"),
> I dereferenced a pointer before checking if its valid.
> This is reported by static check Smatch as:
> net/tipc/monitor.c:733 tipc_nl_add_monitor_peer()
> warn:
