linux-kernel - ERR_PTR(0) in a couple of places

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Message-ID: <ZQ+Fo9WKyGphwI8R@gallifrey>
Date:   Sun, 24 Sep 2023 00:41:07 +0000
From:   "Dr. David Alan Gilbert" <dave@...blig.org>
To:     matthew.brost@...el.com, mgreer@...malcreek.com,
        krzysztof.kozlowski@...aro.org
Cc:     linux-kernel@...r.kernel.org, airlied@...il.com,
        intel-gfx@...ts.freedesktop.org
Subject: ERR_PTR(0) in a couple of places

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);

  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  \ 
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