ide: fix IDE PMAC breakage

Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> writes:

> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
> ---
>  drivers/ide/ide-probe.c |    9 ++-------
>  1 file changed, 2 insertions(+), 7 deletions(-)
>
> Index: b/drivers/ide/ide-probe.c
> ===================================================================
> --- a/drivers/ide/ide-probe.c
> +++ b/drivers/ide/ide-probe.c
> @@ -640,14 +640,9 @@ static int ide_register_port(ide_hwif_t 
>  	/* register with global device tree */
>  	dev_set_name(&hwif->gendev, hwif->name);
>  	hwif->gendev.driver_data = hwif;
> -	if (hwif->gendev.parent == NULL) {
> -		if (hwif->dev)
> -			hwif->gendev.parent = hwif->dev;
> -		else
> -			/* Would like to do = &device_legacy */
> -			hwif->gendev.parent = NULL;
> -	}
> +	hwif->gendev.parent = hwif->dev;

This [bart: commit 96d40941236722777c259775640b8880b7dc6f33 ("ide: small
ide_register_port() cleanup")] breaks ide-pmac.  It overwrites the parent
that pmac_ide_macio_attach has set.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 312127ea443a..0db1ed9f5fc2 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -649,7 +649,8 @@ static int ide_register_port(ide_hwif_t *hwif)
         /* register with global device tree */
         dev_set_name(&hwif->gendev, hwif->name);
         hwif->gendev.driver_data = hwif;
-        hwif->gendev.parent = hwif->dev;
+        if (hwif->gendev.parent == NULL)
+                hwif->gendev.parent = hwif->dev;
         hwif->gendev.release = hwif_release_dev;
 
         ret = device_register(&hwif->gendev);