Commit 55029c1d authored Jan 13, 2010 by Ben Hutchings Committed by David S. Miller Jan 13, 2010

sfc: Fix polling for slow MCDI operations



When the interface is down and we are using polled mode for MCDI
operations, we busy-wait for completion for approximately 1 jiffy
using udelay() and then back off to schedule().  But the completion
will not wake the task, since we are using polled mode!  We must use
schedule_timeout_uninterruptible() instead.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent baf86c9d

drivers/net/sfc/mcdi.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -142,8 +142,9 @@ static int efx_mcdi_poll(struct efx_nic *efx)
		if (spins != 0) {
		--spins;
		udelay(1);
		} else
		schedule();
		} else {
		schedule_timeout_uninterruptible(1);
		}

		time = get_seconds();