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[Qemu-devel] [PULL 14/41] vhost: don't assume opaque is a fd, use backen
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 14/41] vhost: don't assume opaque is a fd, use backend cleanup |
Date: |
Fri, 29 Jul 2016 06:15:54 +0300 |
From: Marc-André Lureau <address@hidden>
vhost-dev opaque isn't necessarily an fd, it can be a chardev when using
vhost-user. Goto fail, so vhost_backend_cleanup() is called to handle
backend cleanup appropriately.
vhost_set_backend_type() should never fail, use an assert().
Signed-off-by: Marc-André Lureau <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
hw/virtio/vhost.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index ec3abda..429499a 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -1019,21 +1019,19 @@ int vhost_dev_init(struct vhost_dev *hdev, void *opaque,
hdev->migration_blocker = NULL;
- if (vhost_set_backend_type(hdev, backend_type) < 0) {
- close((uintptr_t)opaque);
- return -1;
- }
+ r = vhost_set_backend_type(hdev, backend_type);
+ assert(r >= 0);
- if (hdev->vhost_ops->vhost_backend_init(hdev, opaque) < 0) {
- close((uintptr_t)opaque);
- return -errno;
+ r = hdev->vhost_ops->vhost_backend_init(hdev, opaque);
+ if (r < 0) {
+ goto fail;
}
if (used_memslots > hdev->vhost_ops->vhost_backend_memslots_limit(hdev)) {
fprintf(stderr, "vhost backend memory slots limit is less"
" than current number of present memory slots\n");
- close((uintptr_t)opaque);
- return -1;
+ r = -1;
+ goto fail;
}
QLIST_INSERT_HEAD(&vhost_devices, hdev, entry);
--
MST
- [Qemu-devel] [PULL 05/41] acpi: refactor pxb crs computation, (continued)
- [Qemu-devel] [PULL 05/41] acpi: refactor pxb crs computation, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 06/41] hw/apci: handle 64-bit MMIO regions correctly, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 07/41] hw/pci-bridge: Convert pxb initialization functions to Error, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 08/41] apb: convert init to realize, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 09/41] hw/virtio-pci: fix virtio behaviour, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 10/41] virtio: check vring descriptor buffer length, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 11/41] misc: indentation, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 12/41] vhost-user: minor simplification, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 13/41] vhost-user: disconnect on HUP, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 15/41] vhost: make vhost_log_put() idempotent, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 14/41] vhost: don't assume opaque is a fd, use backend cleanup,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL 16/41] vhost: assert the log was cleaned up, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 17/41] vhost: fix cleanup on not fully initialized device, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 18/41] vhost: make vhost_dev_cleanup() idempotent, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 19/41] vhost-net: always call vhost_dev_cleanup() on failure, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 20/41] vhost: fix calling vhost_dev_cleanup() after vhost_dev_init(), Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 22/41] vhost: add missing VHOST_OPS_DEBUG, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 21/41] vhost: do not assert() on vhost_ops failure, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 23/41] vhost: use error_report() instead of fprintf(stderr, ...), Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 24/41] qemu-char: fix qemu_chr_fe_set_msgfds() crash when disconnected, Michael S. Tsirkin, 2016/07/28
- [Qemu-devel] [PULL 25/41] vhost-user: call set_msgfds unconditionally, Michael S. Tsirkin, 2016/07/28