fix a problem where the pcap fd/context was set to nonblocking after …

…pcap_activate had failed
kohler · Sep 18, 2017 · 1907ba1 · 1907ba1
1 parent aa7e85d
commit 1907ba1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/elements/userlevel/fromdevice.cc b/elements/userlevel/fromdevice.cc
@@ -285,7 +285,7 @@ FromDevice::open_pcap(String ifname, int snaplen, bool promisc,
     if (r < 0) {
         errh->error("%s: %s", ifname.c_str(), fetch_pcap_error(p, 0));
         pcap_close(p);
-        p = 0;
+        return 0;
     } else if (r > 0)
         errh->warning("%s: %s", ifname.c_str(), fetch_pcap_error(p, 0));