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Thu, 27 Apr 2023 06:10:26 -0700 (PDT) X-Google-Smtp-Source: ACHHUZ5S3GYQBrK+av3rMDoseY+u6wOdrccOeBlkjXNTYq9KDJbkiY5oSzxUqUwTeeW1qcx4i1Qmpg== X-Received: by 2002:a17:907:8687:b0:953:7bb2:28d8 with SMTP id qa7-20020a170907868700b009537bb228d8mr1612432ejc.21.1682601025652; Thu, 27 Apr 2023 06:10:25 -0700 (PDT) From: Paolo Bonzini To: qemu-devel@nongnu.org Cc: Christian Schoenebeck Subject: [PATCH] tests: virtio-9p-client: Rreaddir fields are all mandatory Date: Thu, 27 Apr 2023 15:10:23 +0200 Message-Id: <20230427131023.105801-1-pbonzini@redhat.com> X-Mailer: git-send-email 2.40.0 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: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.171, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, 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-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1682601097525100001 Content-Type: text/plain; charset="utf-8" If rreaddir.entries is NULL, the resulting dirent list is leaked. Check that the rreaddir case is filled correctly in the caller when treaddir succeeds; this then makes it possible to remove the conditionals is v9fs_rreaddir. Reported by Coverity. Cc: Christian Schoenebeck Signed-off-by: Paolo Bonzini --- tests/qtest/libqos/virtio-9p-client.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/tests/qtest/libqos/virtio-9p-client.c b/tests/qtest/libqos/vir= tio-9p-client.c index e4a368e03660..17125e78deae 100644 --- a/tests/qtest/libqos/virtio-9p-client.c +++ b/tests/qtest/libqos/virtio-9p-client.c @@ -579,6 +579,7 @@ TReadDirRes v9fs_treaddir(TReadDirOpt opt) v9fs_rlerror(req, &err); g_assert_cmpint(err, =3D=3D, opt.expectErr); } else { + g_assert(opt.rreaddir.count && opt.rreaddir.nentries && opt.rr= eaddir.entries); v9fs_rreaddir(req, opt.rreaddir.count, opt.rreaddir.nentries, opt.rreaddir.entries); } @@ -600,9 +601,7 @@ void v9fs_rreaddir(P9Req *req, uint32_t *count, uint32_= t *nentries, v9fs_req_recv(req, P9_RREADDIR); v9fs_uint32_read(req, &local_count); =20 - if (count) { - *count =3D local_count; - } + *count =3D local_count; =20 for (int32_t togo =3D (int32_t)local_count; togo >=3D 13 + 8 + 1 + 2; @@ -610,9 +609,7 @@ void v9fs_rreaddir(P9Req *req, uint32_t *count, uint32_= t *nentries, { if (!e) { e =3D g_new(struct V9fsDirent, 1); - if (entries) { - *entries =3D e; - } + *entries =3D e; } else { e =3D e->next =3D g_new(struct V9fsDirent, 1); } @@ -624,10 +621,7 @@ void v9fs_rreaddir(P9Req *req, uint32_t *count, uint32= _t *nentries, v9fs_string_read(req, &slen, &e->name); } =20 - if (nentries) { - *nentries =3D n; - } - + *nentries =3D n; v9fs_req_free(req); } =20 --=20 2.40.0