[PATCH net v4 3/3] net: stmmac: est: Fix GCL bounds checks

[Rohan G Thomas via B4 Relay]

From: Rohan G Thomas <rohan.g.thomas at altera.com>

Fix the bounds checks for the hw supported maximum GCL entry
count and gate interval time.

Fixes: b60189e0392f ("net: stmmac: Integrate EST with TAPRIO scheduler API")
Signed-off-by: Rohan G Thomas <rohan.g.thomas at altera.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach at altera.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
index ef65cf511f3e25eb512187d52775bb363bb83902..d786527185999db6bb6a18a29eee5ff5282b8ef4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c
@@ -981,7 +981,7 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 	if (qopt->cmd == TAPRIO_CMD_DESTROY)
 		goto disable;
 
-	if (qopt->num_entries >= dep)
+	if (qopt->num_entries > dep)
 		return -EINVAL;
 	if (!qopt->cycle_time)
 		return -ERANGE;
@@ -1012,7 +1012,7 @@ static int tc_taprio_configure(struct stmmac_priv *priv,
 		s64 delta_ns = qopt->entries[i].interval;
 		u32 gates = qopt->entries[i].gate_mask;
 
-		if (delta_ns > GENMASK(wid, 0))
+		if (delta_ns > GENMASK(wid - 1, 0))
 			return -ERANGE;
 		if (gates > GENMASK(31 - wid, 0))
 			return -ERANGE;

-- 
2.43.7