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-rw-r--r--drivers/scsi/sata_sil24.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index d8a2f5f04e82..571302dc48a3 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -489,12 +489,21 @@ static void sil24_error_intr(struct ata_port *ap, u32 slot_stat)
489 u32 irq_stat, cmd_err, sstatus, serror; 489 u32 irq_stat, cmd_err, sstatus, serror;
490 490
491 irq_stat = readl(port + PORT_IRQ_STAT); 491 irq_stat = readl(port + PORT_IRQ_STAT);
492 writel(irq_stat, port + PORT_IRQ_STAT); /* clear irq */
493
494 if (!(irq_stat & PORT_IRQ_ERROR)) {
495 /* ignore non-completion, non-error irqs for now */
496 printk(KERN_WARNING DRV_NAME
497 "ata%u: non-error exception irq (irq_stat %x)\n",
498 ap->id, irq_stat);
499 return;
500 }
501
492 cmd_err = readl(port + PORT_CMD_ERR); 502 cmd_err = readl(port + PORT_CMD_ERR);
493 sstatus = readl(port + PORT_SSTATUS); 503 sstatus = readl(port + PORT_SSTATUS);
494 serror = readl(port + PORT_SERROR); 504 serror = readl(port + PORT_SERROR);
495 505
496 /* Clear IRQ/errors */ 506 /* Clear IRQ/errors */
497 writel(irq_stat, port + PORT_IRQ_STAT);
498 if (cmd_err) 507 if (cmd_err)
499 writel(cmd_err, port + PORT_CMD_ERR); 508 writel(cmd_err, port + PORT_CMD_ERR);
500 if (serror) 509 if (serror)