From a20b2a44eca52818ef52a94959480b7e6ea2f528 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Mon, 8 Jun 2009 22:07:28 +0200
Subject: [PATCH] ide: skip probe if there are no devices on the port (v2)
In ide_probe_port() skip probe if ide_port_wait_ready() returns -ENODEV
and print error message instead of debug one if it returns -EBUSY.
v2:
Fix the default 'rc' value.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---
drivers/ide/ide-probe.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 28f95cb41c29..f9c2fb7d0005 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -702,8 +702,14 @@ static int ide_probe_port(ide_hwif_t *hwif)
if (irqd)
disable_irq(hwif->irq);
- if (ide_port_wait_ready(hwif) == -EBUSY)
- printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name);
+ rc = ide_port_wait_ready(hwif);
+ if (rc == -ENODEV) {
+ printk(KERN_INFO "%s: no devices on the port\n", hwif->name);
+ goto out;
+ } else if (rc == -EBUSY)
+ printk(KERN_ERR "%s: not ready before the probe\n", hwif->name);
+ else
+ rc = -ENODEV;
/*
* Second drive should only exist if first drive was found,
@@ -714,7 +720,7 @@ static int ide_probe_port(ide_hwif_t *hwif)
if (drive->dev_flags & IDE_DFLAG_PRESENT)
rc = 0;
}
-
+out:
/*
* Use cached IRQ number. It might be (and is...) changed by probe
* code above
--
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