Hello Mike,

On 29.01.21 18:44, Mike Nawrocki wrote:
> The smc911x driver probe routine polls the READY bit using
> wait_on_timeout, which returns 0 on success. The error check following
> the wait_on_timeout invocation in the probe routine interprets a
> returned 0 as failure.
> 
> This patch correctly interprets the return value of wait_on_timeout.

Apparently two wrongs indeed make one right..

It used to be !smc911x_reg_read(priv, PMT_CTRL) & PMT_CTRL_READY,
which was flagged by static analysis and I dropped the !, because
it's clearly wrong. Now I understand why it did work..

Thanks for fixing this properly.

Reviewed-by: Ahmad Fatoum <[email protected]>

Cheers,
Ahmad

> 
> Signed-off-by: Mike Nawrocki <[email protected]>
> ---
>  drivers/net/smc911x.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c
> index ea7cea5f1..1edc16ce4 100644
> --- a/drivers/net/smc911x.c
> +++ b/drivers/net/smc911x.c
> @@ -541,7 +541,7 @@ static int smc911x_probe(struct device_d *dev)
>        * forbidden while this bit isn't set. Try for 100ms
>        */
>       ret = wait_on_timeout(100 * MSECOND, smc911x_reg_read(priv, PMT_CTRL) & 
> PMT_CTRL_READY);
> -     if (!ret) {
> +     if (ret) {
>               dev_err(dev, "Device not READY in 100ms aborting\n");
>               return -ENODEV;
>       }
> 

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