[PATCH 2/5] sata_sil24: better error message from softreset

[Tejun Heo <htejun@gmail.com>]

Improve softreset error message.

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

---

 drivers/scsi/sata_sil24.c |   12 ++++++++++--
 1 files changed, 10 insertions(+), 2 deletions(-)

7b901b3ebd190cbab8424b599221da795375f892
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index 512ee6f..c75c228 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -435,6 +435,7 @@ static int sil24_softreset(struct ata_po
 	dma_addr_t paddr = pp->cmd_block_dma;
 	unsigned long timeout = jiffies + ATA_TMOUT_BOOT;
 	u32 irq_enable, irq_stat;
+	const char *reason;
 
 	DPRINTK("ENTER\n");
 
@@ -474,8 +475,11 @@ static int sil24_softreset(struct ata_po
 	writel(irq_enable, port + PORT_IRQ_ENABLE_SET);
 
 	if (!(irq_stat & PORT_IRQ_COMPLETE)) {
-		printk(KERN_ERR "ata%u: softreset failed (timeout)\n", ap->id);
-		return -EIO;
+		if (irq_stat & PORT_IRQ_ERROR)
+			reason = "SRST command error";
+		else
+			reason = "timeout";
+		goto err;
 	}
 
 	sil24_update_tf(ap);
@@ -487,6 +491,10 @@ static int sil24_softreset(struct ata_po
  out:
 	DPRINTK("EXIT, class=%u\n", *class);
 	return 0;
+
+ err:
+	printk(KERN_ERR "ata%u: softreset failed (%s)\n", ap->id, reason);
+	return -EIO;
 }
 
 static int sil24_hardreset(struct ata_port *ap, unsigned int *class)
-- 
1.2.4