From: Linus Walleij <linus.wall...@linaro.org>

[ Upstream commit a7920efdd86d8a0d74402dbc80ead03b023294ba ]

There is an off-by-one error in rtl8366rb_is_vlan_valid()
making VLANs 0..4094 valid while it should be 1..4095.
Fix it.

Fixes: d8652956cf37 ("net: dsa: realtek-smi: Add Realtek SMI driver")
Signed-off-by: Linus Walleij <linus.wall...@linaro.org>
Reviewed-by: Florian Fainelli <f.faine...@gmail.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/net/dsa/rtl8366rb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/rtl8366rb.c b/drivers/net/dsa/rtl8366rb.c
index 48f1ff7467999..5cfffa7559c7c 100644
--- a/drivers/net/dsa/rtl8366rb.c
+++ b/drivers/net/dsa/rtl8366rb.c
@@ -1255,7 +1255,7 @@ static bool rtl8366rb_is_vlan_valid(struct realtek_smi 
*smi, unsigned int vlan)
        if (smi->vlan4k_enabled)
                max = RTL8366RB_NUM_VIDS - 1;
 
-       if (vlan == 0 || vlan >= max)
+       if (vlan == 0 || vlan > max)
                return false;
 
        return true;
-- 
2.25.1



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