[PATCH iwl-net 3/10] ice: disallow service task to run while driver is unloading

[Aleksandr Loktionov <aleksandr.loktionov@intel.com>]

From: Dave Ertman <david.m.ertman@intel.com>

When the driver has entered the unload path (specifically ice_remove())
the service task should not be running. If a tick of the service task
has already been scheduled, it needs to be intercepted.

Add a check in the service task for the ICE_SHUTTING_DOWN bit.

Fixes: 9162a897d234 ("ice: stop DCBNL requests during driver unload")
Cc: stable@vger.kernel.org
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index b5adb13..60b2558 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -3056,6 +3056,7 @@ static void ice_service_task(struct work_struct *work)
 	/* bail if a reset/recovery cycle is pending or rebuild failed */
 	if (ice_is_reset_in_progress(pf->state) ||
 	    test_bit(ICE_SUSPENDED, pf->state) ||
+	    test_bit(ICE_SHUTTING_DOWN, pf->state) ||
 	    test_bit(ICE_NEEDS_RESTART, pf->state)) {
 		ice_service_task_complete(pf);
 		return;
-- 
2.52.0