Re: [PATCH] ARM: OMAP1: ams-delta: Fix impossible .irq < 0

From: Aaro Koskinen
Date: Tue Oct 02 2018 - 13:57:13 EST


Hi,

On Tue, Oct 02, 2018 at 11:45:29AM +0200, Janusz Krzysztofik wrote:
> Since the very beginning, unsigned int .irq member of struct
> plat_serial8250_port introduced by commit eff443df679e ("OMAP1:
> AMS_DELTA: add modem support") was statically initialized to a negative
> value -EINVAL. Moreover, commit 0812db943748 ("ARM: OMAP1: ams-delta:
> assign MODEM IRQ from GPIO descriptor") has introduced some new code
> which checks for that member carrying a negative value which is
> impossible.
>
> Use IRQ_NOTCONNECTED instead of -EINVAL. Also, drop the valueless check
> and let the modem device be registered regardless of .irq value, and
> the value handled by "serial8250" driver.
>
> Fixes: 0812db943748 ("ARM: OMAP1: ams-delta: assign MODEM IRQ from GPIO descriptor")
> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Signed-off-by: Janusz Krzysztofik <jmkrzyszt@xxxxxxxxx>

Acked-by: Aaro Koskinen <aaro.koskinen@xxxxxx>

A.