From 853732210ee91a50c0a1ad89fa54afe390c8084b Mon Sep 17 00:00:00 2001
From: Eric Leblond <eric@regit.org>
Date: Tue, 19 Nov 2013 11:06:50 +0100
Subject: [PATCH] pfring: improve error reporting at device opening

This patch improves the error message displayed if pfring_open fails.
---
 src/source-pfring.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/source-pfring.c b/src/source-pfring.c
index 4dd40000a5..addeb50abe 100644
--- a/src/source-pfring.c
+++ b/src/source-pfring.c
@@ -405,7 +405,9 @@ TmEcode ReceivePfringThreadInit(ThreadVars *tv, void *initdata, void **data) {
     ptv->pd = pfring_open(ptv->interface, LIBPFRING_PROMISC, (uint32_t)default_packet_size, LIBPFRING_REENTRANT);
 #endif
     if (ptv->pd == NULL) {
-        SCLogError(SC_ERR_PF_RING_OPEN,"opening %s failed: pfring_open error",
+        SCLogError(SC_ERR_PF_RING_OPEN,"Failed to open %s: pfring_open error."
+                " Check if %s exists and pf_ring module is loaded.",
+                ptv->interface,
                 ptv->interface);
         pfconf->DerefFunc(pfconf);
         return TM_ECODE_FAILED;