[net-next 2/2] sctp: add a checking for sctp_sysctl_net_register

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When register_net_sysctl failed, we should free the
sysctl_table.

Signed-off-by: Wang Weidong <wangweidong1@xxxxxxxxxx>
---
 net/sctp/sysctl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index ee80eb4..7e5eb75 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -447,6 +447,10 @@ int sctp_sysctl_net_register(struct net *net)
 		table[i].data += (char *)(&net->sctp) - (char *)&init_net.sctp;
 
 	net->sctp.sysctl_header = register_net_sysctl(net, "net/sctp", table);
+	if (net->sctp.sysctl_header == NULL) {
+		kfree(table);
+		return -ENOMEM;
+	}
 	return 0;
 }
 
-- 
1.7.12


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