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| From: | Matthias Hofmann |
| Subject: | [lwip-devel] [bug #54062] Inconsequent null pointer checks |
| Date: | Thu, 7 Jun 2018 01:29:52 -0400 (EDT) |
| User-agent: | Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Firefox/60.0 |
Follow-up Comment #5, bug #54062 (project lwip):
I'm working on a patch according to your advice. When it is done we can close
the bug and additional rework can be provided as patches.
When adding the check code I stumbled over different return codes for NULL
checks. For example netconn_getaddr use ERR_ARG, but in the UDP code ERR_VAL
is used.
Is there any difference between both return codes and when to use them?
I tend to use ERR_ARG for null checks.
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