diff --git a/drivers/net/cxgb3/t3_hw.c b/drivers/net/cxgb3/t3_hw.c
index e1bd690ff831..4f68aeb2679a 100644
--- a/drivers/net/cxgb3/t3_hw.c
+++ b/drivers/net/cxgb3/t3_hw.c
@@ -3779,7 +3779,7 @@ int t3_prep_adapter(struct adapter *adapter, const struct adapter_info *ai,
 
 	adapter->params.info = ai;
 	adapter->params.nports = ai->nports0 + ai->nports1;
-	adapter->params.chan_map = !!ai->nports0 | (!!ai->nports1 << 1);
+	adapter->params.chan_map = (!!ai->nports0) | (!!ai->nports1 << 1);
 	adapter->params.rev = t3_read_reg(adapter, A_PL_REV);
 	/*
 	 * We used to only run the "adapter check task" once a second if