Re: [PATCH v4 32/47] serial: ucc_uart: use of_property_read_u32() in ucc_uart_probe()

From: Timur Tabi
Date: Thu Nov 14 2019 - 23:26:34 EST


On Fri, Nov 8, 2019 at 7:03 AM Rasmus Villemoes
<linux@xxxxxxxxxxxxxxxxxx> wrote:
>
> + if (of_property_read_u32(np, "cell-index", &val) &&
> + of_property_read_u32(np, "device-id", &val)) {

I know that this is technically correct, but it's obfuscated IMHO.
'val' is set correctly only when of_property_read_u32(...) is "false",
which is doubly-weird because of_property_read_u32(...) doesn't
actually return a boolean.

I would rather you break this into two if-statements like the original code.