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[79.183.34.164]) by smtp.gmail.com with ESMTPSA id 186sm28282qkm.93.2020.01.07.08.29.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 07 Jan 2020 08:29:43 -0800 (PST) Date: Tue, 7 Jan 2020 11:29:41 -0500 From: "Michael S. Tsirkin" To: qemu-devel@nongnu.org Subject: [PULL v3 02/32] virtio: make virtio_delete_queue idempotent Message-ID: <20200107162850.411448-3-mst@redhat.com> References: <20200107162850.411448-1-mst@redhat.com> MIME-Version: 1.0 In-Reply-To: <20200107162850.411448-1-mst@redhat.com> X-Mailer: git-send-email 2.24.1.751.gd10ce2899c X-Mutt-Fcc: =sent X-MC-Unique: sCws1RBqOmazZkPmqduoOA-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 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: Peter Maydell , Pan Nengyuan Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Let's make sure calling this twice is harmless - no known instances, but seems safer. Suggested-by: Pan Nengyuan Signed-off-by: Michael S. Tsirkin --- hw/virtio/virtio.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c index 31dd140990..6de3cfdc2c 100644 --- a/hw/virtio/virtio.c +++ b/hw/virtio/virtio.c @@ -2337,6 +2337,7 @@ void virtio_delete_queue(VirtQueue *vq) vq->handle_output =3D NULL; vq->handle_aio_output =3D NULL; g_free(vq->used_elems); + vq->used_elems =3D NULL; } =20 void virtio_del_queue(VirtIODevice *vdev, int n) --=20 MST