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Commit a14dc574 authored by Bartlomiej Zolnierkiewicz's avatar Bartlomiej Zolnierkiewicz
Browse files

ide: move hwif_register() call out of ide_probe_port() 



* Add BUG_ON(hwif->present) at the start of ide_probe_port().

* Move hwif_register() call (along with setting hwif->present) from
  ide_probe_port() to ide_device_add_all().

  As a result the port will be registered with the device tree _after_:
  - probing both devices (if both are present)
  - port reset (if hwif->reset is set)
  - restoring local IRQs state and re-enabling port IRQ

While at it:

* Rename hwif_register() to ide_register_port().

Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent e84e7ea7

drivers/ide/ide-probe.c

+13 −14
Original line number Diff line number Diff line
@@ -613,7 +613,7 @@ static void hwif_release_dev (struct device *dev) 
	complete(&hwif->gendev_rel_comp);

}



static void hwif_register (ide_hwif_t *hwif)

static void ide_register_port(ide_hwif_t *hwif)

{

	int ret;
@@ -742,7 +742,9 @@ static int ide_probe_port(ide_hwif_t *hwif) 
{

	unsigned long flags;

	unsigned int irqd;

	int unit;

	int unit, rc = -ENODEV;



	BUG_ON(hwif->present);



	if (hwif->noprobe)

		return -EACCES;
@@ -767,14 +769,8 @@ static int ide_probe_port(ide_hwif_t *hwif) 
		ide_drive_t *drive = &hwif->drives[unit];

		drive->dn = (hwif->channel ? 2 : 0) + unit;

		(void) probe_for_drive(drive);

		if (drive->present && !hwif->present) {

			hwif->present = 1;

			if (hwif->chipset != ide_4drives ||

			    !hwif->mate || 

			    !hwif->mate->present) {

				hwif_register(hwif);

			}

		}

		if (drive->present)

			rc = 0;

	}

	if (hwif->io_ports[IDE_CONTROL_OFFSET] && hwif->reset) {

		printk(KERN_WARNING "%s: reset\n", hwif->name);
@@ -791,10 +787,7 @@ static int ide_probe_port(ide_hwif_t *hwif) 
	if (irqd)

		enable_irq(irqd);



	if (!hwif->present)

		return -ENODEV;



	return 0;

	return rc;

}



static void ide_port_tune_devices(ide_hwif_t *hwif)
@@ -1319,6 +1312,12 @@ int ide_device_add_all(u8 *idx) 
			continue;

		}



		hwif->present = 1;



		if (hwif->chipset != ide_4drives || !hwif->mate ||

		    !hwif->mate->present)

			ide_register_port(hwif);



		ide_port_tune_devices(hwif);

	}