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authorJason Wang <jasowang@redhat.com>2022-12-13 17:07:17 +0800
committerMichael S. Tsirkin <mst@redhat.com>2022-12-28 05:28:11 -0500
commit0b7a04a30eef20e6b24926a45c0ce7906ae85bd6 (patch)
treed34281cd5de6ee12155f7ad509d76d854a3e562c /drivers/vdpa
parent1c96d5457f7251d1c62aacc04921557d56fc049a (diff)
vdpasim: fix memory leak when freeing IOTLBs
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>
Diffstat (limited to 'drivers/vdpa')
-rw-r--r--drivers/vdpa/vdpa_sim/vdpa_sim.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index b20689f8fe89..cb88891b44a8 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -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);
}