From: Martin Habets mhabets@solarflare.com
[ Upstream commit 723eb53690041740a13ac78efeaf6804f5d684c9 ]
The workqueue only exists for the primary PF. For other functions we hit a WARN_ON in kernel/workqueue.c.
Fixes: 7c236c43b838 ("sfc: Add support for IEEE-1588 PTP") Signed-off-by: Martin Habets mhabets@solarflare.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/sfc/ptp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/net/ethernet/sfc/ptp.c +++ b/drivers/net/ethernet/sfc/ptp.c @@ -1534,7 +1534,8 @@ void efx_ptp_remove(struct efx_nic *efx) (void)efx_ptp_disable(efx);
cancel_work_sync(&efx->ptp_data->work); - cancel_work_sync(&efx->ptp_data->pps_work); + if (efx->ptp_data->pps_workwq) + cancel_work_sync(&efx->ptp_data->pps_work);
skb_queue_purge(&efx->ptp_data->rxq); skb_queue_purge(&efx->ptp_data->txq);