Hello Santosh Nayak,
The patch bdaefbf580cd: "[SCSI] pm8001: Fix bogus interrupt state
flag issue." from Feb 26, 2012, leads to the following warning:
drivers/scsi/pm8001/pm8001_hwi.c:2400 mpi_sata_completion()
error: double unlock 'irq:'
} else if (t->uldd_task) {
- spin_unlock_irqrestore(&t->task_state_lock, flags);
+ spin_unlock_irq(&t->task_state_lock);
^^^^^^^^^^^^^^^
pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
mb();/* ditto */
- spin_unlock_irqrestore(&pm8001_ha->lock, flags);
+ spin_unlock_irq(&pm8001_ha->lock);
^^^^^^^^^^^^^^^
It doesn't make sense to enable IRQs twice. I'm not sure if it should
be the first or second unlock which enables them.
t->task_done(t);
- spin_lock_irqsave(&pm8001_ha->lock, flags);
+ spin_lock_irq(&pm8001_ha->lock);
} else if (!t->uldd_task) {
- spin_unlock_irqrestore(&t->task_state_lock, flags);
+ spin_unlock_irq(&t->task_state_lock);
^^^^^^^^^^^^^^^
pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
mb();/*ditto*/
- spin_unlock_irqrestore(&pm8001_ha->lock, flags);
+ spin_unlock_irq(&pm8001_ha->lock);
^^^^^^^^^^^^^^^
Same thing again.
t->task_done(t);
- spin_lock_irqsave(&pm8001_ha->lock, flags);
+ spin_lock_irq(&pm8001_ha->lock);
}
regards,
dan carpenter
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