Re: [PATCH] gpio: gpio-xilinx: Check return value of of_property_read_u32

From: Michal Simek
Date: Mon Jun 20 2022 - 02:27:03 EST


Hi Andy,

On 6/17/22 18:02, Andy Shevchenko wrote:


On Fri, Jun 17, 2022 at 7:20 AM Srinivas Neeli
<srinivas.neeli@xxxxxxxxxx> wrote:

In five different instances the return value of "of_property_read_u32"
API was neither captured nor checked.

Fixed it by capturing the return value and then checking for any error.

Signed-off-by: Srinivas Neeli <srinivas.neeli@xxxxxxxxxx>
Addresses-Coverity: "check_return"

I think the best course of action here is to go and fix Coverity while
marking these as false positives.

To the idea of castings -- this is not good style and (many?)
maintainers in kernel do not accept such "workaround" for fixing
broken tool.

Let's wait for Linus what he will say about it.
I can't see nothing wrong about declaring that I am intentionally ignoring return code.

Thanks,
Michal