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Fri, 22 Jul 2022 10:04:56 -0700 (PDT) X-Google-Smtp-Source: AGRyM1tkJcbgpisA42oX98fQTKg26RV8hMqp4ZjPqy0ksqUjDB1tbtVrkSR0sWoAVrjGRh82h+deYg== X-Received: by 2002:a17:906:7e43:b0:72b:52de:b039 with SMTP id z3-20020a1709067e4300b0072b52deb039mr665197ejr.198.1658509495840; Fri, 22 Jul 2022 10:04:55 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: Peter Maydell Subject: [PULL 2/8] accel/kvm: Avoid Coverity warning in query_stats() Date: Fri, 22 Jul 2022 19:04:43 +0200 Message-Id: <20220722170449.853222-3-pbonzini@redhat.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220722170449.853222-1-pbonzini@redhat.com> References: <20220722170449.853222-1-pbonzini@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=pbonzini@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1658509641713100001 Content-Type: text/plain; charset="utf-8" From: Peter Maydell Coverity complains that there is a codepath in the query_stats() function where it can leak the memory pointed to by stats_list. This can only happen if the caller passes something other than STATS_TARGET_VM or STATS_TARGET_VCPU as the 'target', which no callsite does. Enforce this assumption using g_assert_not_reached(), so that if we have a future bug we hit the assert rather than silently leaking memory. Resolves: Coverity CID 1490140 Fixes: cc01a3f4cadd91e6 ("kvm: Support for querying fd-based stats") Signed-off-by: Peter Maydell Message-Id: <20220719134853.327059-1-peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini --- accel/kvm/kvm-all.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index 99aede73b7..f165074e99 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -4014,7 +4014,7 @@ static void query_stats(StatsResultList **result, Sta= tsTarget target, stats_list); break; default: - break; + g_assert_not_reached(); } } =20 --=20 2.36.1