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vdpasim: fix memory leak when freeing IOTLBs 

[ Upstream commit 0b7a04a30e ]

After commit bda324fd03 ("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: bda324fd03 ("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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jason Wang 2022-12-13 17:07:17 +08:00 committed by Greg Kroah-Hartman
parent 8fe12680b2
commit 54b210c90d
1 changed files with 3 additions and 1 deletions
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4
drivers/vdpa/vdpa_sim/vdpa_sim.c
View File

@ -679,7 +679,9 @@ 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);
}