drivers: net: cpsw: fix buggy loop condition

Commit 0cd8f9cc0654c06adde353c6532114c5f53a18e8 ("drivers: net: cpsw:
enable promiscuous mode support")

Enable promiscuous mode support for CPSW.

Introduced a crash on an am335x based board (similiar to am335x-evm).
Reason is buggy end condition in for loop in cpsw_set_promiscious()

for (i = 0; i <= priv->data.slaves; i++)

should be

for (i = 0; i < priv->data.slaves; i++)

Fix this ...

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Daniel Mack <zonque@gmail.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Markus Pargmann <mpa@pengutronix.de>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 542c5114851c..651087b5c8da 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -554,7 +554,7 @@ static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
                  * common for both the interface as the interface shares
                  * the same hardware resource.
                  */
-                for (i = 0; i <= priv->data.slaves; i++)
+                for (i = 0; i < priv->data.slaves; i++)
                         if (priv->slaves[i].ndev->flags & IFF_PROMISC)
                                 flag = true;
 
@@ -578,7 +578,7 @@ static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
                         unsigned long timeout = jiffies + HZ;
 
                         /* Disable Learn for all ports */
-                        for (i = 0; i <= priv->data.slaves; i++) {
+                        for (i = 0; i < priv->data.slaves; i++) {
                                 cpsw_ale_control_set(ale, i,
                                                      ALE_PORT_NOLEARN, 1);
                                 cpsw_ale_control_set(ale, i,
@@ -606,7 +606,7 @@ static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
                         cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 0);
 
                         /* Enable Learn for all ports */
-                        for (i = 0; i <= priv->data.slaves; i++) {
+                        for (i = 0; i < priv->data.slaves; i++) {
                                 cpsw_ale_control_set(ale, i,
                                                      ALE_PORT_NOLEARN, 0);
                                 cpsw_ale_control_set(ale, i,