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Commit ad6e90f6 authored by Tejun Heo's avatar Tejun Heo Committed by Jeff Garzik
Browse files

[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: default avatarTejun Heo <htejun@gmail.com>

 sata_sil24.c |   11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)
Signed-off-by: default avatarJeff Garzik <jgarzik@pobox.com>
parent 012e060c

drivers/scsi/sata_sil24.c

+10 −1
Original line number Diff line number Diff line
@@ -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)