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authorXuan Zhuo2023-10-10 11:11:18 +0800
committerGreg Kroah-Hartman2023-11-02 09:35:23 +0100
commit534487cc3eb82a660704d554b9d5dd12aa1cc00a (patch)
treee52f43802ef746ebd1e059c3180c96dc9f54da12 /drivers/virtio
parent86f467d3582e0300d4574aec1cf6fb1d86dfd361 (diff)
virtio_pci: fix the common cfg map size
commit 061b39fdfe7fd98946e67637213bcbb10a318cca upstream. The function vp_modern_map_capability() takes the size parameter, which corresponds to the size of virtio_pci_common_cfg. As a result, this indicates the size of memory area to map. Now the size is the size of virtio_pci_common_cfg, but some feature(such as the _F_RING_RESET) needs the virtio_pci_modern_common_cfg, so this commit changes the size to the size of virtio_pci_modern_common_cfg. Cc: stable@vger.kernel.org Fixes: 0b50cece0b78 ("virtio_pci: introduce helper to get/set queue reset") Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com> Message-Id: <20231010031120.81272-3-xuanzhuo@linux.alibaba.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/virtio')
-rw-r--r--drivers/virtio/virtio_pci_modern_dev.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/virtio/virtio_pci_modern_dev.c b/drivers/virtio/virtio_pci_modern_dev.c
index 869cb46bef96..ccdd41935ed7 100644
--- a/drivers/virtio/virtio_pci_modern_dev.c
+++ b/drivers/virtio/virtio_pci_modern_dev.c
@@ -282,7 +282,7 @@ int vp_modern_probe(struct virtio_pci_modern_device *mdev)
err = -EINVAL;
mdev->common = vp_modern_map_capability(mdev, common,
sizeof(struct virtio_pci_common_cfg), 4,
- 0, sizeof(struct virtio_pci_common_cfg),
+ 0, sizeof(struct virtio_pci_modern_common_cfg),
NULL, NULL);
if (!mdev->common)
goto err_map_common;