net: ethernet: ti: ale: fix port check in cpsw_ale_control_set/get

ALE ports number includes the Host port and ext Ports, and
ALE ports numbering starts from 0, so correct corresponding port
checks in cpsw_ale_control_set/get().

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c
index e513248..93dc05c 100644 (file)
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c
@@ -723,7 +723,7 @@ int cpsw_ale_control_set(struct cpsw_ale *ale, int port, int control,
        if (info->port_offset == 0 && info->port_shift == 0)
                port = 0; /* global, port is a dont care */
 
-       if (port < 0 || port > ale->params.ale_ports)
+       if (port < 0 || port >= ale->params.ale_ports)
                return -EINVAL;
 
        mask = BITMASK(info->bits);
@@ -754,7 +754,7 @@ int cpsw_ale_control_get(struct cpsw_ale *ale, int port, int control)
        if (info->port_offset == 0 && info->port_shift == 0)
                port = 0; /* global, port is a dont care */
 
-       if (port < 0 || port > ale->params.ale_ports)
+       if (port < 0 || port >= ale->params.ale_ports)
                return -EINVAL;
 
        offset = info->offset + (port * info->port_offset);