Re: [PATCH 5/5] of: Refactor node and property manipulation function locking

From: Andy Shevchenko
Date: Wed Aug 02 2023 - 11:22:00 EST


On Tue, Aug 01, 2023 at 03:54:48PM -0600, Rob Herring wrote:
> All callers of __of_{add,remove,update}_property() and
> __of_{attach,detach}_node() wrap the call with the devtree_lock
> spinlock. Let's move the spinlock into the functions. This allows moving
> the sysfs update functions into those functions as well.

...

> +out:

out_unlock: ?

> + raw_spin_unlock_irqrestore(&devtree_lock, flags);
> + if (!rc)
> + __of_add_property_sysfs(np, prop);
> +
> + return rc;

Why not

if (rc)
return rc;

__of_add_property_sysfs(np, prop);
return 0;

?

...

> +out:
> + raw_spin_unlock_irqrestore(&devtree_lock, flags);
> + if (!rc)
> + __of_remove_property_sysfs(np, prop);
> + return rc;

As per above.

--
With Best Regards,
Andy Shevchenko