vhost-user-fs: do delete virtio_queues in unrealize

Similar to other virtio device(https://patchwork.kernel.org/patch/11399237/), virtio queues forgot to delete in unrealize, and aslo error path in realize, this patch fix these memleaks, the leak stack is as follow: Direct leak of 57344 byte(s) in 1 object(s) allocated from: #0 0x7f15784fb970 in __interceptor_calloc (/lib64/libasan.so.5+0xef970) kata-containers#1 0x7f157790849d in g_malloc0 (/lib64/libglib-2.0.so.0+0x5249d) kata-containers#2 0x55587a1bf859 in virtio_add_queue /mnt/sdb/qemu-new/qemu_test/qemu/hw/virtio/virtio.c:2333 kata-containers#3 0x55587a2071d5 in vuf_device_realize /mnt/sdb/qemu-new/qemu_test/qemu/hw/virtio/vhost-user-fs.c:212 kata-containers#4 0x55587a1ae360 in virtio_device_realize /mnt/sdb/qemu-new/qemu_test/qemu/hw/virtio/virtio.c:3531 kata-containers#5 0x55587a63fb7b in device_set_realized /mnt/sdb/qemu-new/qemu_test/qemu/hw/core/qdev.c:891 kata-containers#6 0x55587acf03f5 in property_set_bool /mnt/sdb/qemu-new/qemu_test/qemu/qom/object.c:2238 kata-containers#7 0x55587acfce0d in object_property_set_qobject /mnt/sdb/qemu-new/qemu_test/qemu/qom/qom-qobject.c:26 kata-containers#8 0x55587acf5c8c in object_property_set_bool /mnt/sdb/qemu-new/qemu_test/qemu/qom/object.c:1390 kata-containers#9 0x55587a8e22a2 in pci_qdev_realize /mnt/sdb/qemu-new/qemu_test/qemu/hw/pci/pci.c:2095 kata-containers#10 0x55587a63fb7b in device_set_realized /mnt/sdb/qemu-new/qemu_test/qemu/hw/core/qdev.c:891 qemu#11 0x55587acf03f5 in property_set_bool /mnt/sdb/qemu-new/qemu_test/qemu/qom/object.c:2238 qemu#12 0x55587acfce0d in object_property_set_qobject /mnt/sdb/qemu-new/qemu_test/qemu/qom/qom-qobject.c:26 qemu#13 0x55587acf5c8c in object_property_set_bool /mnt/sdb/qemu-new/qemu_test/qemu/qom/object.c:1390 qemu#14 0x55587a496d65 in qdev_device_add /mnt/sdb/qemu-new/qemu_test/qemu/qdev-monitor.c:679 Reported-by: Euler Robot <[email protected]> Signed-off-by: Pan Nengyuan <[email protected]> Cc: "Dr. David Alan Gilbert" <[email protected]> Cc: Stefan Hajnoczi <[email protected]> Message-Id: <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
teawater · Feb 25, 2020 · ba07cf5 · ba07cf5
1 parent 6ab425d
commit ba07cf5
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/hw/virtio/vhost-user-fs.c b/hw/virtio/vhost-user-fs.c
@@ -230,6 +230,10 @@ static void vuf_device_realize(DeviceState *dev, Error **errp)
 
 err_virtio:
     vhost_user_cleanup(&fs->vhost_user);
+    virtio_del_queue(vdev, 0);
+    for (i = 0; i < fs->conf.num_request_queues; i++) {
+        virtio_del_queue(vdev, i + 1);
+    }
     virtio_cleanup(vdev);
     g_free(fs->vhost_dev.vqs);
     return;
@@ -239,6 +243,7 @@ static void vuf_device_unrealize(DeviceState *dev, Error **errp)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(dev);
     VHostUserFS *fs = VHOST_USER_FS(dev);
+    int i;
 
     /* This will stop vhost backend if appropriate. */
     vuf_set_status(vdev, 0);
@@ -247,6 +252,10 @@ static void vuf_device_unrealize(DeviceState *dev, Error **errp)
 
     vhost_user_cleanup(&fs->vhost_user);
 
+    virtio_del_queue(vdev, 0);
+    for (i = 0; i < fs->conf.num_request_queues; i++) {
+        virtio_del_queue(vdev, i + 1);
+    }
     virtio_cleanup(vdev);
     g_free(fs->vhost_dev.vqs);
     fs->vhost_dev.vqs = NULL;