From: Ivan Orlov Date: Wed, 22 Mar 2023 14:45:28 +0000 (+0400) Subject: KVM: selftests: Add 'malloc' failure check in vcpu_save_state X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=735b0e0f2d001b7ed9486db84453fb860e764a4d;p=linux.git KVM: selftests: Add 'malloc' failure check in vcpu_save_state There is a 'malloc' call in vcpu_save_state 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: Ivan Orlov Link: https://lore.kernel.org/r/20230322144528.704077-1-ivan.orlov0322@gmail.com Signed-off-by: Sean Christopherson --- diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c b/tools/testing/selftests/kvm/lib/x86_64/processor.c index c09cd151fbe09..a12b21a2ef374 100644 --- a/tools/testing/selftests/kvm/lib/x86_64/processor.c +++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c @@ -970,6 +970,7 @@ struct kvm_x86_state *vcpu_save_state(struct kvm_vcpu *vcpu) vcpu_run_complete_io(vcpu); state = malloc(sizeof(*state) + msr_list->nmsrs * sizeof(state->msrs.entries[0])); + TEST_ASSERT(state, "-ENOMEM when allocating kvm state"); vcpu_events_get(vcpu, &state->events); vcpu_mp_state_get(vcpu, &state->mp_state);