1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/cxgb4vf/t4vf_hw.c b/drivers/net/cxgb4vf/t4vf_hw.c
index 1ef252864b9c..ea1c123f0cb4 100644
--- a/drivers/net/cxgb4vf/t4vf_hw.c
+++ b/drivers/net/cxgb4vf/t4vf_hw.c
@@ -163,7 +163,7 @@ int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size,
         for (i = 0; i < 500; i += ms) {
                 if (sleep_ok) {
                         ms = delay[delay_idx];
-                        if (delay_idx < ARRAY_SIZE(delay))
+                        if (delay_idx < ARRAY_SIZE(delay) - 1)
                                 delay_idx++;
                         msleep(ms);
                 } else