Re: [PATCH net v2] net: micrel: Fix lan8841_config_intr after getting out of sleep mode

From: Andrew Lunn
Date: Fri May 24 2024 - 11:55:49 EST


On Fri, May 24, 2024 at 10:53:50AM +0200, Horatiu Vultur wrote:
> When the interrupt is enabled, the function lan8841_config_intr tries to
> clear any pending interrupts by reading the interrupt status, then
> checks the return value for errors and then continue to enable the
> interrupt. It has been seen that once the system gets out of sleep mode,
> the interrupt status has the value 0x400 meaning that the PHY detected
> that the link was in low power. That is correct value but the problem is
> that the check is wrong. We try to check for errors but we return an
> error also in this case which is not an error. Therefore fix this by
> returning only when there is an error.
>
> Fixes: a8f1a19d27ef ("net: micrel: Add support for lan8841 PHY")
> Signed-off-by: Horatiu Vultur <horatiu.vultur@xxxxxxxxxxxxx>

Reviewed-by: Andrew Lunn <andrew@xxxxxxx>

Andrew