[libvirt] [PATCH 1/3] Close fd's of persistent tap devices

Eric Blake eblake at redhat.com
Sat Aug 14 16:49:34 UTC 2010


On 08/11/2010 03:51 PM, Soren Hansen wrote:
> When passing a NULL tapfd argument to brAddTap, we need to close the fd
> of the tap device. If we don't, libvirt will keep the fd open
> indefinitely and renders the the guest unable to configure its side of
> the tap device.
> 
> Signed-off-by: Soren Hansen <soren at linux2go.dk>
> ---
>  src/util/bridge.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/src/util/bridge.c b/src/util/bridge.c
> index 7d0caae..da62c5e 100644
> --- a/src/util/bridge.c
> +++ b/src/util/bridge.c
> @@ -538,6 +538,8 @@ brAddTap(brControl *ctl,
>          goto error;
>      if (tapfd)
>          *tapfd = fd;
> +    else
> +        close(fd);

ACK; applied.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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