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Null check callback function in callbackRequest

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Previously, calling callbackRequest(pcallback), where pcallback->callback
is NULL, would result in a crash on one of the callback threads.
This commit is contained in:
Jeremy Lorelli
2023-11-03 11:40:25 -07:00
committed by mdavidsaver
parent 3fa1932345
commit f4be9daf4d
1 changed files with 4 additions and 0 deletions
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4
modules/database/src/ioc/db/callback.c
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@@ -344,6 +344,10 @@ int callbackRequest(epicsCallback *pcallback)
epicsInterruptContextMessage("callbackRequest: " ERL_ERROR " pcallback was NULL\n");
return S_db_notInit;
}
if (!pcallback->callback) {
epicsInterruptContextMessage("callbackRequest: " ERL_ERROR " pcallback->callback was NULL\n");
return S_db_notInit;
}
priority = pcallback->priority;
if (priority < 0 || priority >= NUM_CALLBACK_PRIORITIES) {
epicsInterruptContextMessage("callbackRequest: " ERL_ERROR " Bad priority\n");