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Commit a20b2a44 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
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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: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 75c2d7d7

drivers/ide/ide-probe.c

+9 −3
Original line number Diff line number Diff line
@@ -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