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tests: Fix logic to not have possible NULL deref

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It's possible that virBitmapNewString returns NULL with an error
string (and not an allocation failure that would abort); however, if
virBitmapToString is called with a NULL @bitmap, then it will fail
in an ugly manner. So rather than have if (!map && !str) logic, split
the checks for each variable.

Found by Coverity

Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
John Ferlan 2019-11-03 07:55:21 -05:00
parent 77180d0f70
commit 3f3f74dbc7
1 changed files with 4 additions and 2 deletions
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6
tests/virbitmaptest.c
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@ -682,9 +682,11 @@ test13(const void *opaque G_GNUC_UNUSED)
for (i = 0; i < G_N_ELEMENTS(strings); i++) {
map = virBitmapNewString(strings[i]);
str = virBitmapToString(map, false, true);
if (!map)
goto cleanup;
if (!map || !str)
str = virBitmapToString(map, false, true);
if (!str)
goto cleanup;
if (STRNEQ(strings[i], str)) {