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bh=TUvYH7Ab9K730Vam2H02MvE9Tv11hlA9Pwl56H34s7Y=; b=eZWMwQQw2QQlOQ0fvlipDKEf2aDQlmdIp91m9IK7t7DFcbNZp4xNKJRwv/aehkeGxO4V/Z 0Vu6cr4Izi7qXHU+vkVMh/w8w9/PVYFBz7DpB36fL/Uvn2UqtPCKqwluPUC4x/jmWCey7z HUWg/IeCl7ac5ArB1EStATWcNF/l1RY= X-MC-Unique: wr9Bm5iCNPyAax3ZdBUf-g-1 From: Maxim Levitsky To: qemu-devel@nongnu.org Subject: [PATCH v3 2/2] block: qcow2: remove the created file on initialization error Date: Tue, 8 Dec 2020 16:21:59 +0200 Message-Id: <20201208142159.492489-3-mlevitsk@redhat.com> In-Reply-To: <20201208142159.492489-1-mlevitsk@redhat.com> References: <20201208142159.492489-1-mlevitsk@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=mlevitsk@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com 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=216.205.24.124; envelope-from=mlevitsk@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Maxim Levitsky , Alberto Garcia , qemu-block@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" If the qcow initialization fails, we should remove the file if it was already created, to avoid leaving stale files around. We already do this for luks raw images. Signed-off-by: Maxim Levitsky Reviewed-by: Alberto Garcia --- block/qcow2.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/block/qcow2.c b/block/qcow2.c index 3a90ef2786..3bc2096b72 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -3848,6 +3848,19 @@ static int coroutine_fn qcow2_co_create_opts(BlockDr= iver *drv, /* Create the qcow2 image (format layer) */ ret =3D qcow2_co_create(create_options, errp); if (ret < 0) { + + Error *local_delete_err =3D NULL; + int r_del =3D bdrv_co_delete_file(bs, &local_delete_err); + /* + * ENOTSUP will happen if the block driver doesn't support + * the 'bdrv_co_delete_file' interface. This is a predictable + * scenario and shouldn't be reported back to the user. + */ + if ((r_del < 0) && (r_del !=3D -ENOTSUP)) { + error_report_err(local_delete_err); + } else { + error_free(local_delete_err); + } goto finish; } =20 --=20 2.26.2