memif: fix coverity warnings

Check -1 for return from read prior to using the data

Change-Id: Ibab7309244de488737ea7938b334fab495bf855d
Signed-off-by: Steven <sluong@cisco.com>

diff --git a/src/plugins/memif/memif.c b/src/plugins/memif/memif.c
index a671bda..7d2a09a 100644 (file)
--- a/src/plugins/memif/memif.c
+++ b/src/plugins/memif/memif.c
@@ -472,6 +472,8 @@ memif_int_fd_read_ready (unix_file_t * uf)
       mif->interrupt_line.index = ~0;
       mif->interrupt_line.fd = -1;
     }
+  else if (size < 0)
+    DEBUG_UNIX_LOG ("Failed to read from socket");
   else
     vnet_device_input_set_interrupt_pending (vnm, mif->hw_if_index, b);