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sungem: update gp->reset_task flushing 

gp->reset_task_pending is always set right before reset_task is
scheduled and as there is no synchronization between the setting and
scheduling, busy looping on reset_task_pending before flushing
reset_task doesn't really buy anything.

Directly flush gp->reset_task on suspend and cancel on detach.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
This commit is contained in:
Tejun Heo 2010-12-12 16:45:14 +01:00
parent 760141a53e
commit fe8998c5e3
1 changed files with 4 additions and 8 deletions
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12
drivers/net/sungem.c
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@ -2380,10 +2380,8 @@ static int gem_suspend(struct pci_dev *pdev, pm_message_t state)
*/
mutex_unlock(&gp->pm_mutex);
/* Wait for a pending reset task to complete */
while (gp->reset_task_pending)
yield();
flush_scheduled_work();
/* Wait for the pending reset task to complete */
flush_work_sync(&gp->reset_task);
/* Shut the PHY down eventually and setup WOL */
gem_stop_phy(gp, gp->asleep_wol);
@ -2928,10 +2926,8 @@ static void gem_remove_one(struct pci_dev *pdev)
/* We shouldn't need any locking here */
gem_get_cell(gp);
/* Wait for a pending reset task to complete */
while (gp->reset_task_pending)
yield();
flush_scheduled_work();
/* Cancel reset task */
cancel_work_sync(&gp->reset_task);
/* Shut the PHY down */
gem_stop_phy(gp, 0);