[PATCHv4 4/7] hwspinlock/core: add common OF helpers

On Mon, Feb 10, 2014 at 9:14 PM, Suman Anna [off-list ref] wrote:

On 02/07/2014 04:49 PM, Bjorn Andersson wrote:

quoted

It seems to be standard practice to pass the error value back to the
consumer, so you should
return ERR_PTR(ret); here instead of the NULL...

I have modelled the return values in this function based on the return
values in the existing hwspin_lock_request interfaces. I would need to
change those functions as well.

Ohad,
Do you have any objections to the return code convention change?

Unless strictly needed, I prefer we don't switch to the ERR_PTR code
convention, as it reduces code readability and increases chances of
user bugs.

In our case, switching to ERR_PTR and friends seems only to optimize a
few error paths, and I'm not sure it's a big win over simplicity.

Thanks,
Ohad.