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

[Kunwu Chan]

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 <chen...@kylinos.cn>
---
 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