net: stmmac: dwmac1000: fix out-of-bounds mac address reg setting

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Commit 9463c44559 ("net: stmmac: dwmac1000: Clear unused address
entries") cleared the unused mac address entries, but introduced an
out-of bounds mac address register programming bug -- After setting
the secondary unicast mac addresses, the "reg" value has reached
netdev_uc_count() + 1, thus we should only clear address entries
if (addr < perfect_addr_number)

Fixes: 9463c44559 ("net: stmmac: dwmac1000: Clear unused address entries")
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Jisheng Zhang 2020-04-03 10:23:29 +08:00 • committed by David S. Miller

parent 468c2a1002

commit 3e1221acf6

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c

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