r8169: improve rtl_coalesce_choose_scale

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The time limit provided by userspace is multiplied with 1000,
what could result in an overflow. Therefore change the time limit
parameter unit from ns to us, and avoid the problematic operation.
If there's no matching scale because provided time limit is too big,
return ERANGE instead of EINVAL to provide a hint to the user what's
wrong.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Heiner Kallweit 2020-04-30 21:57:32 +02:00 • committed by David S. Miller

parent 6cf96dd427

commit cb9d97de05

1 changed files with 7 additions and 6 deletions

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drivers/net/ethernet/realtek/r8169_main.c

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