diff mbox series

[1/2,net-next] net: stmmac: dwmac4: mac address array boudary violation issue

Message ID 20190709023623.8358-2-biao.huang@mediatek.com (mailing list archive)
State New, archived
Headers show
Series fix out-of-boundary issue and add taller hash table support | expand

Commit Message

Biao Huang (黄彪) July 9, 2019, 2:36 a.m. UTC
The mac address array size is GMAC_MAX_PERFECT_ADDRESSES,
so the 'reg' should be less than it, or will affect other registers.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index 8d9f6cda4012..776077ec1a23 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -454,7 +454,7 @@  static void dwmac4_set_filter(struct mac_device_info *hw,
 			reg++;
 		}
 
-		while (reg <= GMAC_MAX_PERFECT_ADDRESSES) {
+		while (reg < GMAC_MAX_PERFECT_ADDRESSES) {
 			writel(0, ioaddr + GMAC_ADDR_HIGH(reg));
 			writel(0, ioaddr + GMAC_ADDR_LOW(reg));
 			reg++;