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cryptodev/vhost: allocate CryptoDevBackendVhost using g_mem0()

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The function `vhost_dev_init()` expects the `struct vhost_dev`
(passed as a parameter) to be fully initialized. This is important
because some parts of the code check whether `vhost_dev->config_ops`
is NULL to determine if it has been set (e.g. later via
`vhost_dev_set_config_notifier`).

To ensure this initialization, it’s better to allocate the entire
`CryptoDevBackendVhost` structure (which includes `vhost_dev`) using
`g_mem0()`, following the same approach used for other vhost devices,
such as in `vhost_net_init()`.

Fixes: 042cea274c ("cryptodev: add vhost-user as a new cryptodev backend")
Cc: qemu-stable@nongnu.org
Reported-by: myluo24@m.fudan.edu.cn
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20250211135523.101203-1-sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 83cb18ac45)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Stefano Garzarella 2025-02-11 14:55:23 +01:00 • committed by Michael Tokarev
parent d1b8423fb8
commit 9b878bd927
1 changed files with 1 additions and 1 deletions
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2
backends/cryptodev-vhost.c
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@ -53,7 +53,7 @@ cryptodev_vhost_init(
CryptoDevBackendVhost *crypto;
Error *local_err = NULL;
crypto = g_new(CryptoDevBackendVhost, 1);
crypto = g_new0(CryptoDevBackendVhost, 1);
crypto->dev.max_queues = 1;
crypto->dev.nvqs = 1;
crypto->dev.vqs = crypto->vqs;