util-ioctl: add message in case of failure

diff --git a/src/util-ioctl.c b/src/util-ioctl.c
index b3a0f224784eee555bd4381ee01a941ac2d25f6a..28a72f796189b0cd35241b334a8d664df88f17d1 100644 (file)
--- a/src/util-ioctl.c
+++ b/src/util-ioctl.c
@@ -220,6 +220,9 @@ int GetIfaceRSSQueuesNum(const char *pcap_dev)
     (void)strlcpy(ifr.ifr_name, pcap_dev, sizeof(ifr.ifr_name));
     fd = socket(AF_INET, SOCK_DGRAM, 0);
     if (fd == -1) {
+        SCLogWarning(SC_ERR_SYSCALL,
+                "Failure when opening socket for ioctl: %d",
+                errno);
         return -1;
     }