Fix a batch of coverity warnings, VPP-486

Change-Id: I0379844824b4c2eb42588d0fb8e1a7eb441e923f
Signed-off-by: Dave Barach <dave@barachs.net>

6 files changed, 19 insertions, 6 deletions

diff --git a/vlib-api/vlibapi/api_shared.c b/vlib-api/vlibapi/api_shared.c
index c62ac5b18a5..c133922cabd 100644
--- a/vlib-api/vlibapi/api_shared.c
+++ b/vlib-api/vlibapi/api_shared.c
@@ -847,6 +847,7 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
       if (!cfgp)
 	{
 	  vlib_cli_output (vm, "Ugh: msg id %d no trace config\n", msg_id);
+	  munmap (hp, file_size);
 	  return;
 	}
       size = cfgp->size;
@@ -872,6 +873,7 @@ vl_msg_api_process_file (vlib_main_t * vm, u8 * filename,
       if (!cfgp)
 	{
 	  vlib_cli_output (vm, "Ugh: msg id %d no trace config\n", msg_id);
+	  munmap (hp, file_size);
 	  return;
 	}
       size = cfgp->size;
diff --git a/vnet/vnet/devices/dpdk/cli.c b/vnet/vnet/devices/dpdk/cli.c
index 85c3e8038f3..c8a1d067a1c 100644
--- a/vnet/vnet/devices/dpdk/cli.c
+++ b/vnet/vnet/devices/dpdk/cli.c
@@ -1188,6 +1188,10 @@ set_dpdk_if_hqos_tctbl (vlib_main_t * vm, unformat_input_t * input,
 
   /* Detect the set of worker threads */
   uword *p = hash_get_mem (tm->thread_registrations_by_name, "workers");
+  /* Should never happen, shut up Coverity warning */
+  if (p == 0)
+    return clib_error_return (0, "no worker registrations?");
+
   vlib_thread_registration_t *tr = (vlib_thread_registration_t *) p[0];
   int worker_thread_first = tr->first_index;
   int worker_thread_count = tr->count;
@@ -1224,6 +1228,10 @@ set_dpdk_if_hqos_pktfield (vlib_main_t * vm, unformat_input_t * input,
 
   /* Detect the set of worker threads */
   uword *p = hash_get_mem (tm->thread_registrations_by_name, "workers");
+  /* Should never happen, shut up Coverity warning */
+  if (p == 0)
+    return clib_error_return (0, "no worker registrations?");
+
   vlib_thread_registration_t *tr = (vlib_thread_registration_t *) p[0];
   int worker_thread_first = tr->first_index;
   int worker_thread_count = tr->count;
@@ -1426,6 +1434,11 @@ show_dpdk_if_hqos (vlib_main_t * vm, unformat_input_t * input,
 
   /* Detect the set of worker threads */
   p = hash_get_mem (tm->thread_registrations_by_name, "workers");
+
+  /* Should never happen, shut up Coverity warning */
+  if (p == 0)
+    return clib_error_return (0, "no worker registrations?");
+
   tr = (vlib_thread_registration_t *) p[0];
 
   cfg = &devconf->hqos;
diff --git a/vnet/vnet/devices/dpdk/init.c b/vnet/vnet/devices/dpdk/init.c
index e06d6bf2834..ee22b9a2753 100644
--- a/vnet/vnet/devices/dpdk/init.c
+++ b/vnet/vnet/devices/dpdk/init.c
@@ -739,7 +739,7 @@ dpdk_lib_init (dpdk_main_t * dm)
       if (devconf->hqos_enabled)
 	{
 	  rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
-	  if (rv < 0)
+	  if (rv)
 	    return rv;
 	}
 
diff --git a/vnet/vnet/ip/ip6_neighbor.c b/vnet/vnet/ip/ip6_neighbor.c
index 7a63a73c454..5585c95824f 100644
--- a/vnet/vnet/ip/ip6_neighbor.c
+++ b/vnet/vnet/ip/ip6_neighbor.c
@@ -1063,7 +1063,8 @@ icmp6_neighbor_solicitation_or_advertisement (vlib_main_t * vm,
               vlib_buffer_advance(p0, - ethernet_buffer_header_size(p0));
               eth0 = vlib_buffer_get_current(p0);
               clib_memcpy(eth0->dst_address, eth0->src_address, 6);
-              clib_memcpy(eth0->src_address, eth_if0->address, 6);
+              if (eth_if0)
+                clib_memcpy(eth0->src_address, eth_if0->address, 6);
 
               /* Setup input and output sw_if_index for packet */
               ASSERT(vnet_buffer(p0)->sw_if_index[VLIB_RX] == sw_if_index0);
diff --git a/vpp-api-test/vat/api_format.c b/vpp-api-test/vat/api_format.c
index 120c39c4dba..fb3b2d3757b 100644
--- a/vpp-api-test/vat/api_format.c
+++ b/vpp-api-test/vat/api_format.c
@@ -6325,9 +6325,6 @@ api_mpls_ip_bind_unbind (vat_main_t * vam)
 
   /* Wait for a reply... */
   W;
-
-  /* Return the good/bad news */
-  return (vam->retval);
 }
 
 static int
diff --git a/vpp/vpp-api/test_client.c b/vpp/vpp-api/test_client.c
index d6192497268..cb265ee5c69 100644
--- a/vpp/vpp-api/test_client.c
+++ b/vpp/vpp-api/test_client.c
@@ -878,7 +878,7 @@ connect_unix_tap (test_main_t * tm, char *name)
   mp->_vl_msg_id = ntohs (VL_API_TAP_CONNECT);
   mp->client_index = tm->my_client_index;
   mp->context = 0xdeadbeef;
-  clib_memcpy (mp->tap_name, name, strlen (name));
+  strncpy ((char *) mp->tap_name, name, sizeof (mp->tap_name) - 1);
   mp->use_random_mac = 1;
   vl_msg_api_send_shmem (tm->vl_input_queue, (u8 *) & mp);
 }