[PATCH] ice: fix potential infinite loop because loop counter being too small

[Colin King]

From: Colin Ian King <colin.king@xxxxxxxxxxxxx>

Currently the for-loop counter i is a u8 however it is being checked
against a maximum value hw->num_tx_sched_layers which is a u16. Hence
there is a potential wrap-around of counter i back to zero if
hw->num_tx_sched_layers is greater than 255.  Fix this by making i
a u16.

Addresses-Coverity: ("Infinite loop")
Fixes: b36c598c999c ("ice: Updates to Tx scheduler code")
Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
---
 drivers/net/ethernet/intel/ice/ice_sched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c
index fc624b73d05d..2fde9653a608 100644
--- a/drivers/net/ethernet/intel/ice/ice_sched.c
+++ b/drivers/net/ethernet/intel/ice/ice_sched.c
@@ -1036,7 +1036,7 @@ enum ice_status ice_sched_query_res_alloc(struct ice_hw *hw)
 	struct ice_aqc_query_txsched_res_resp *buf;
 	enum ice_status status = 0;
 	__le16 max_sibl;
-	u8 i;
+	u16 i;
 
 	if (hw->layer_info)
 		return status;
-- 
2.20.1