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vdpasim: fix memory leak when freeing IOTLBs

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After commit bda324fd037a ("vdpasim: control virtqueue support"),
vdpasim->iommu became an array of IOTLB, so we should clean the
mappings of each free one by one instead of just deleting the ranges
in the first IOTLB which may leak maps.

Fixes: bda324fd037a ("vdpasim: control virtqueue support")
Cc: Gautam Dawar <gautam.dawar@xilinx.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20221213090717.61529-1-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Gautam Dawar <gautam.dawar@amd.com>
This commit is contained in:
Jason Wang 2022-12-13 17:07:17 +08:00 committed by Michael S. Tsirkin
parent 1c96d5457f
commit 0b7a04a30e
1 changed files with 3 additions and 1 deletions
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4
drivers/vdpa/vdpa_sim/vdpa_sim.c
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@ -689,7 +689,9 @@ static void vdpasim_free(struct vdpa_device *vdpa)
}
kvfree(vdpasim->buffer);
vhost_iotlb_free(vdpasim->iommu);
for (i = 0; i < vdpasim->dev_attr.nas; i++)
vhost_iotlb_reset(&vdpasim->iommu[i]);
kfree(vdpasim->iommu);
kfree(vdpasim->vqs);
kfree(vdpasim->config);
}