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esx: avoid dead code

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Detected by Coverity.  The beginning of the function already filtered
out NULL objectContentList as invalid.  Further investigation shows:

esxVI_RetrieveProperties is generated and returns a list of objects
that match the given propertyFilterSpec.
esxVI_LookupObjectContentByType then tests whether the result
corresponds to the expected occurrence and reports an error otherwise.
This simplifies the callers of  esxVI_LookupObjectContentByType, but
due to the missing dereference the check was never performed because
the code thought that at least one item was obtained. NULL represents
an empty list. This is a potential segfault fix because callers of
esxVI_LookupObjectContentByType that specified "required" occurrence
assume *objectContentList to be non-NULL when
esxVI_LookupObjectContentByType succeeds.

* src/esx/esx_vi.c (esxVI_LookupObjectContentByType): Check
correct pointer.
This commit is contained in:
Eric Blake 2011-06-06 13:19:38 -06:00
parent ba4983da47
commit 657ae229c8
1 changed files with 2 additions and 2 deletions
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4
src/esx/esx_vi.c
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@ -2,7 +2,7 @@
/*
* esx_vi.c: client for the VMware VI API 2.5 to manage ESX hosts
*
* Copyright (C) 2010 Red Hat, Inc.
* Copyright (C) 2010-2011 Red Hat, Inc.
* Copyright (C) 2009-2011 Matthias Bolte <matthias.bolte@googlemail.com>
*
* This library is free software; you can redistribute it and/or
@ -1737,7 +1737,7 @@ esxVI_LookupObjectContentByType(esxVI_Context *ctx,
goto cleanup;
}
if (objectContentList == NULL) {
if (*objectContentList == NULL) {
switch (occurrence) {
case esxVI_Occurrence_OptionalItem:
case esxVI_Occurrence_OptionalList: