Change in libosmocore[master]: LOGPFSM*: guard against fi == NULL

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Neels Hofmeyr gerrit-no-reply at lists.osmocom.org
Thu Dec 20 22:40:57 UTC 2018


Neels Hofmeyr has posted comments on this change. ( https://gerrit.osmocom.org/12385 )

Change subject: LOGPFSM*: guard against fi == NULL
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Patch Set 1:

(1 comment)

https://gerrit.osmocom.org/#/c/12385/1//COMMIT_MSG
Commit Message:

https://gerrit.osmocom.org/#/c/12385/1//COMMIT_MSG@9
PS1, Line 9: they should guard against a NULL
> Any reasons why should we tolerate NULL?
We have various places where an FSM instance is only allocated if something starts, like lchan->fi or assignment->fi etc. If we put some LOGPFSM() using that ->fi pointer that happens to still be NULL, it's more stable to log "NULL" instead of segfault straight away.

So if anyone anywhere doesn't pay attention about an unpopulated ->fi, we introduce program crashes. This patch generally avoids those, and if someone cares enough they can fix the NULL logging later.



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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I9eaf8b7e2cf1e450ae626cb2fc928862008f6233
Gerrit-Change-Number: 12385
Gerrit-PatchSet: 1
Gerrit-Owner: Neels Hofmeyr <nhofmeyr at sysmocom.de>
Gerrit-Reviewer: Jenkins Builder (1000002)
Gerrit-Reviewer: Neels Hofmeyr <nhofmeyr at sysmocom.de>
Gerrit-CC: Vadim Yanitskiy <axilirator at gmail.com>
Gerrit-Comment-Date: Thu, 20 Dec 2018 22:40:57 +0000
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