memif: fix the coverity warning

Type: fix

Fixes: 2bae16b238bd ("memif: fix the default txq placement")

Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: I8fbb2aa92dc31d84a5cd0f7b9a3c7f39dfb064ee

diff --git a/src/plugins/memif/memif.c b/src/plugins/memif/memif.c
index 31dd4a5..3b01819 100644 (file)
--- a/src/plugins/memif/memif.c
+++ b/src/plugins/memif/memif.c
@@ -236,7 +236,7 @@ memif_connect (memif_if_t * mif)
   clib_file_t template = { 0 };
   memif_region_t *mr;
   int i, j;
-  u32 n_txqs, n_threads = vlib_get_n_threads ();
+  u32 n_txqs = 0, n_threads = vlib_get_n_threads ();
   clib_error_t *err = NULL;
 
   memif_log_debug (mif, "connect %u", mif->dev_instance);
@@ -284,11 +284,14 @@ memif_connect (memif_if_t * mif)
       clib_spinlock_init (&mq->lockp);
     }
 
-  n_txqs = vec_len (mif->tx_queues);
-  for (j = 0; j < n_threads; j++)
+  if (vec_len (mif->tx_queues) > 0)
     {
-      u32 qi = mif->tx_queues[j % n_txqs].queue_index;
-      vnet_hw_if_tx_queue_assign_thread (vnm, qi, j);
+      n_txqs = vec_len (mif->tx_queues);
+      for (j = 0; j < n_threads; j++)
+       {
+         u32 qi = mif->tx_queues[j % n_txqs].queue_index;
+         vnet_hw_if_tx_queue_assign_thread (vnm, qi, j);
+       }
     }
 
   vec_foreach_index (i, mif->rx_queues)