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tipc: check return value of nlmsg_new 

Function nlmsg_new() will return a NULL pointer if there is no enough
memory, and its return value should be checked before it is used.
However, in function tipc_nl_node_get_monitor(), the validation of the
return value of function nlmsg_new() is missed. This patch fixes the
bug.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pan Bian 2017-04-23 15:09:19 +08:00 committed by David S. Miller
parent a50fe0ffd7
commit 78302fd405
1 changed files with 2 additions and 0 deletions
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2
net/tipc/node.c
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@ -2098,6 +2098,8 @@ int tipc_nl_node_get_monitor(struct sk_buff *skb, struct genl_info *info)
int err;
msg.skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
if (!msg.skb)
return -ENOMEM;
msg.portid = info->snd_portid;
msg.seq = info->snd_seq;