rdma: fix pending packets check on tx

Fix coverity CID 203636: Control flow issues  (NO_EFFECT).
This greater-than-or-equal-to-zero comparison of an unsigned value is
always true. "n_left_from >= 0U".

Type: fix
Fixes: e7e8bf37f100b20acb99957572f1796f648c2853

Change-Id: Ibbf8c82defb12d6d532345eea657d5f300e6a514
Signed-off-by: Benoît Ganne <bganne@cisco.com>

diff --git a/src/plugins/rdma/output.c b/src/plugins/rdma/output.c
index 0c6848e..a93c7c8 100644 (file)
--- a/src/plugins/rdma/output.c
+++ b/src/plugins/rdma/output.c
@@ -182,7 +182,7 @@ VNET_DEVICE_CLASS_TX_FN (rdma_device_class) (vlib_main_t * vm,
 
   clib_spinlock_lock_if_init (&txq->lock);
 
-  for (i = 0; i < 5 && n_left_from >= 0; i++)
+  for (i = 0; i < 5 && n_left_from > 0; i++)
     {
       u32 n_enq;
       rdma_device_output_free (vm, txq);