From: Edward Cree
Date: Tue, 20 Jun 2017 13:08:51 +0100
> Somehow two copies of the line 'up_write(&vf->efx->filter_sem);' got into
> efx_ef10_sriov_set_vf_vlan(). This would put the mutex in a bad state and
> cause all subsequent down attempts to hang.
>
> Fixes: 671b53eec2ed ("sfc: Ensure d
Somehow two copies of the line 'up_write(&vf->efx->filter_sem);' got into
efx_ef10_sriov_set_vf_vlan(). This would put the mutex in a bad state and
cause all subsequent down attempts to hang.
Fixes: 671b53eec2ed ("sfc: Ensure down_write(&filter_sem) and up_write() are
matched before calling ef
