android/android_kernel_samsung_sm8650
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

vdpasim: fix memory leak when freeing IOTLBs

Browse Source 
[ Upstream commit 0b7a04a30eef20e6b24926a45c0ce7906ae85bd6 ]

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 6ccc891f36
commit 16b22e27fb
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/vdpa/vdpa_sim/vdpa_sim.c
View File

@ -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);
}