diff --git a/net/sctp/sysctl.c b/net/sctp/sysctl.c
index fe0ba74..29299dc 100644
--- a/net/sctp/sysctl.c
+++ b/net/sctp/sysctl.c
@@ -368,8 +368,7 @@
 		tbl.data = &net->sctp.auth_enable;
 
 	ret = proc_dointvec(&tbl, write, buffer, lenp, ppos);
-
-	if (write) {
+	if (write && ret == 0) {
 		struct sock *sk = net->sctp.ctl_sock;
 
 		net->sctp.auth_enable = new_value;