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-rw-r--r--python-ethtool/netlink.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/python-ethtool/netlink.c b/python-ethtool/netlink.c
index d311405..bb8534b 100644
--- a/python-ethtool/netlink.c
+++ b/python-ethtool/netlink.c
@@ -58,7 +58,9 @@ int open_netlink(PyEtherInfo *ethi)
/* No earlier connections exists, establish a new one */
nlconnection = nl_socket_alloc();
if( nlconnection != NULL ) {
- nl_connect(nlconnection, NETLINK_ROUTE);
+ if( nl_connect(nlconnection, NETLINK_ROUTE) < 0 ) {
+ return 0;
+ }
/* Force O_CLOEXEC flag on the NETLINK socket */
if( fcntl(nl_socket_get_fd(nlconnection), F_SETFD, FD_CLOEXEC) == -1 ) {
fprintf(stderr,