From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
To: virtualization@lists.linux-foundation.org
Cc: "David S. Miller" <davem@davemloft.net>,
Tiwei Bie <tiwei.bie@intel.com>,
"Michael S. Tsirkin" <mst@redhat.com>
Subject: [PATCH v2 0/2] virtio_ring: check desc == NULL when packed and indirect
Date: Mon, 27 Sep 2021 18:54:10 +0800 [thread overview]
Message-ID: <20210927105412.18579-1-xuanzhuo@linux.alibaba.com> (raw)
In the case of packed, use indirect desc, since desc is allocated by
kmalloc_array(), we should check whether its return value is NULL.
This patch alloc desc inside virtqueue_add_packe(), if desc == NULL,
fall back to not using indirect.
v2:
Separate the style fix into a single patch.
Xuan Zhuo (2):
virtio_ring: fix style of virtqueue_add_indirect_packed
virtio_ring: check desc == NULL when packed and indirect
drivers/virtio/virtio_ring.c | 26 +++++++++++++++-----------
1 file changed, 15 insertions(+), 11 deletions(-)
--
2.31.0
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next reply other threads:[~2021-09-27 10:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-27 10:54 Xuan Zhuo [this message]
2021-09-27 10:54 ` [PATCH v2 1/2] virtio_ring: fix style of virtqueue_add_indirect_packed Xuan Zhuo
2021-09-28 3:14 ` Jason Wang
2021-10-19 8:15 ` Xuan Zhuo
2021-10-19 10:38 ` Michael S. Tsirkin
2021-09-27 10:54 ` [PATCH v2 2/2] virtio_ring: check desc == NULL when packed and indirect Xuan Zhuo
2021-09-28 3:20 ` Jason Wang
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