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libata: fix EH locking

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Wrap ata_qc_complete() calls in EH context in spinlocks, to prevent
races (mainly in ATAPI code paths).
This commit is contained in:
Jeff Garzik
2005-08-25 22:01:20 -04:00
parent 617e44fdfd
commit b8f6153ee4
4 changed files with 28 additions and 3 deletions
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5
drivers/scsi/sata_promise.c
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@ -325,11 +325,15 @@ static void pdc_qc_prep(struct ata_queued_cmd *qc)
static void pdc_eng_timeout(struct ata_port *ap)
{
struct ata_host_set *host_set = ap->host_set;
u8 drv_stat;
struct ata_queued_cmd *qc;
unsigned long flags;
DPRINTK("ENTER\n");
spin_lock_irqsave(&host_set->lock, flags);
qc = ata_qc_from_tag(ap, ap->active_tag);
if (!qc) {
printk(KERN_ERR "ata%u: BUG: timeout without command\n",
@ -363,6 +367,7 @@ static void pdc_eng_timeout(struct ata_port *ap)
}
out:
spin_unlock_irqrestore(&host_set->lock, flags);
DPRINTK("EXIT\n");
}