Re: ERR_PTR(0) in a couple of places

From: Matthew Brost
Date: Mon Sep 25 2023 - 00:20:01 EST


On Sun, Sep 24, 2023 at 12:41:07AM +0000, Dr. David Alan Gilbert wrote:
> Hi,
> I randomly noticed there are a couple of places in the kernel that
> do
> ERR_PTR(0);
>
> and thought that was odd - shouldn't those just be NULL's ?
>
> 1) i915
> drivers/gpu/drm/i915/gt/uc/selftest_guc_multi_lrc.c : 47
>
> if (i <= 1)
> return ERR_PTR(0);

Yes, s/ERR_PTR(0)/ERR_PTR(NULL)/

Matt

>
> from f9d72092cb490
>
> 2) trf7970a
> drivers/nfc/trf7970a.c : 896
>
> trf->ignore_timeout =
> !cancel_delayed_work(&trf->timeout_work);
> trf->rx_skb = ERR_PTR(0);
> trf7970a_send_upstream(trf);
>
> from 1961843ceeca0
>
> Dave
> --
> -----Open up your eyes, open up your mind, open up your code -------
> / Dr. David Alan Gilbert | Running GNU/Linux | Happy \
> \ dave @ treblig.org | | In Hex /
> \ _________________________|_____ http://www.treblig.org |_______/