[PATCH] tests: Fixing compiler warning in cputest

[Boris Fiuczynski]

Found when building on Fedora 36 on s390x.

 C compiler for the host machine: gcc (gcc 12.0.1 "gcc (GCC) 12.0.1 20220308 (Red Hat 12.0.1-0)")
 C linker for the host machine: gcc ld.bfd 2.37-24

 In function ‘cpuTestUpdateLiveCompare’,
     inlined from ‘cpuTestUpdateLive’ at ../dist-unpack/libvirt-8.2.5/tests/cputest.c:784:12:
 ../dist-unpack/libvirt-8.2.5/tests/cputest.c:696:21: warning: potential null pointer dereference [-Wnull-dereference]
   696 |              featAct->policy == VIR_CPU_FEATURE_REQUIRE) ||
       |              ~~~~~~~^~~~~~~~

Signed-off-by: Boris Fiuczynski <fiuczy at linux.ibm.com>
---
 tests/cputest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/cputest.c b/tests/cputest.c
index 609b5df7c6..95fb37d15c 100644
--- a/tests/cputest.c
+++ b/tests/cputest.c
@@ -692,7 +692,7 @@ cpuTestUpdateLiveCompare(virArch arch,
         if ((cmp == 0 &&
              featAct->policy == VIR_CPU_FEATURE_REQUIRE &&
              featExp->policy == VIR_CPU_FEATURE_DISABLE) ||
-            (cmp < 0 &&
+            (cmp < 0 && featAct &&
              featAct->policy == VIR_CPU_FEATURE_REQUIRE) ||
             (cmp > 0 &&
              featExp->policy == VIR_CPU_FEATURE_DISABLE)) {
-- 
2.33.1