On Thu, May 12, 2016 at 8:42 PM, Uwe Kleine-König
[off-list ref] wrote:

[added Linus Walleij to Cc, there is a question for you/him below]

(...)

quoted

+void mdio_device_reset(struct mdio_device *mdiodev, int value)
+{
+     if (mdiodev->reset)
+             gpiod_set_value(mdiodev->reset, value);

Before v4.6-rc1~108^2~91 it was not necessary to check for the first
parameter being non-NULL before calling gpiod_set_value. Linus, did you
change this on purpose?

Not really. And AFAICT it is still not necessary: what changed is that
an error message will be printed by VALIDATE_DESC() if you do that.
And that is proper I guess? I think it's sloppy code to randomly pass in
NULL to a call and just expect it to bail out, it seems more like
exercising the error path than something you'd normally rely on.

Or am I getting things wrong?

Yours,
Linus Walleij