[PATCH] KVM: selftests: Add 'malloc' failure check in config_name

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There is a 'malloc' call in config_name function, which can
be unsuccessful. This patch will add the malloc failure checking
to avoid possible null dereference and give more information
about test fail reasons.

Signed-off-by: Kunwu Chan <chentao@xxxxxxxxxx>
---
 tools/testing/selftests/kvm/get-reg-list.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/kvm/get-reg-list.c b/tools/testing/selftests/kvm/get-reg-list.c
index 91f05f78e824..22398696ffd6 100644
--- a/tools/testing/selftests/kvm/get-reg-list.c
+++ b/tools/testing/selftests/kvm/get-reg-list.c
@@ -66,6 +66,7 @@ static const char *config_name(struct vcpu_reg_list *c)
 		len += strlen(s->name) + 1;
 
 	c->name = malloc(len);
+	TEST_ASSERT(c->name, "-ENOMEM when allocating config name");
 
 	len = 0;
 	for_each_sublist(c, s) {
-- 
2.40.1





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