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[PATCH] sil24: ignore non-error exception irqs 

01_sil24_ignore-non-error-exception-irqs.patch

	Do not error-finish commands for non-error exception irqs -
	just ignore them.  This is taken from Edward's driver.

Signed-off-by: Tejun Heo <htejun@gmail.com>

 sata_sil24.c |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Tejun Heo 2005-10-06 11:43:29 +09:00 committed by Jeff Garzik
parent 012e060c95
commit ad6e90f6d0
1 changed files with 10 additions and 1 deletions
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11
drivers/scsi/sata_sil24.c
View File

@ -489,12 +489,21 @@ static void sil24_error_intr(struct ata_port *ap, u32 slot_stat)
u32 irq_stat, cmd_err, sstatus, serror;
irq_stat = readl(port + PORT_IRQ_STAT);
writel(irq_stat, port + PORT_IRQ_STAT); /* clear irq */
if (!(irq_stat & PORT_IRQ_ERROR)) {
/* ignore non-completion, non-error irqs for now */
printk(KERN_WARNING DRV_NAME
"ata%u: non-error exception irq (irq_stat %x)\n",
ap->id, irq_stat);
return;
}
cmd_err = readl(port + PORT_CMD_ERR);
sstatus = readl(port + PORT_SSTATUS);
serror = readl(port + PORT_SERROR);
/* Clear IRQ/errors */
writel(irq_stat, port + PORT_IRQ_STAT);
if (cmd_err)
writel(cmd_err, port + PORT_CMD_ERR);
if (serror)