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virtio-gpu-3d: fix memory leak in resource attach backing 

If the virgl_renderer_resource_attach_iov function fails the
'res_iovs' will be leaked. Add check of the return value to
free the 'res_iovs' when failing.

Signed-off-by: Li Qiang <liq3ea@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1482999086-59795-1-git-send-email-liq3ea@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Li Qiang 2016-12-29 03:11:26 -05:00 committed by Gerd Hoffmann
parent b8e23926c5
commit 33243031da
1 changed files with 5 additions and 2 deletions
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7
hw/display/virtio-gpu-3d.c
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@ -291,8 +291,11 @@ static void virgl_resource_attach_backing(VirtIOGPU *g,
return;
}
virgl_renderer_resource_attach_iov(att_rb.resource_id,
res_iovs, att_rb.nr_entries);
ret = virgl_renderer_resource_attach_iov(att_rb.resource_id,
res_iovs, att_rb.nr_entries);
if (ret != 0)
virtio_gpu_cleanup_mapping_iov(res_iovs, att_rb.nr_entries);
}
static void virgl_resource_detach_backing(VirtIOGPU *g,