fix bashism in nm_ssh_get_free_device

[jcmvbkbc]

On systems with default shell being anything other than bash the redirection '>& /dev/null' may cause shell error, resulting in nm_ssh_get_free_device always returning 0. When tun0 or tap0 is busy this results in failure to establish the tunnel.

Replace bash-specific redirection form '>& /dev/null' with more generic '> /dev/null 2>&1'.

Signed-off-by: Max Filippov [email protected]

[danfruehauf]

Looks good, I'm tempted to just merge it. Have you got a change to test it?

[jcmvbkbc]

Yes, I'm running nm-ssh-service with this change for a few weeks now on a machine with sh symlinked to dash and tap0 used for qemu network.

[jcmvbkbc]

Ping. I wonder if there's anything that prevents merging this simple fix?

[petterreinholdtsen]

Any hope to have this fix merged?