diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2021-05-05 22:14:49 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-14 13:45:58 +0200 |
| commit | 1553573c588e5435b453bf046a2dc9752f1a5d76 (patch) | |
| tree | 443e9b5f1df762bdba5537e981012cd238bcaebd /arch/sparc | |
| parent | a56dfb6a79ee744d2b4ebdc6be56d7201c6bd22c (diff) | |
sparc/vio: make remove callback return void
The driver core ignores the return value of struct bus_type::remove()
because there is only little that can be done. To simplify the quest to
make this function return void, let struct vio_driver::remove() return
void, too. All users already unconditionally return 0, this commit makes
it obvious that returning an error code is a bad idea and should prevent
that future driver authors consider returning an error code.
Note there are two nominally different implementations for a vio bus:
one in arch/sparc/kernel/vio.c and the other in
arch/powerpc/platforms/pseries/vio.c. This patch only addresses the
former.
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210505201449.195627-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/include/asm/vio.h | 2 | ||||
| -rw-r--r-- | arch/sparc/kernel/ds.c | 6 | ||||
| -rw-r--r-- | arch/sparc/kernel/vio.c | 4 |
3 files changed, 3 insertions, 9 deletions
diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h index 059f0eb678e0..8a1a83bbb6d5 100644 --- a/arch/sparc/include/asm/vio.h +++ b/arch/sparc/include/asm/vio.h @@ -362,7 +362,7 @@ struct vio_driver { struct list_head node; const struct vio_device_id *id_table; int (*probe)(struct vio_dev *dev, const struct vio_device_id *id); - int (*remove)(struct vio_dev *dev); + void (*remove)(struct vio_dev *dev); void (*shutdown)(struct vio_dev *dev); unsigned long driver_data; struct device_driver driver; diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c index 522e5b51050c..4a5bdb0df779 100644 --- a/arch/sparc/kernel/ds.c +++ b/arch/sparc/kernel/ds.c @@ -1236,11 +1236,6 @@ out_err: return err; } -static int ds_remove(struct vio_dev *vdev) -{ - return 0; -} - static const struct vio_device_id ds_match[] = { { .type = "domain-services-port", @@ -1251,7 +1246,6 @@ static const struct vio_device_id ds_match[] = { static struct vio_driver ds_driver = { .id_table = ds_match, .probe = ds_probe, - .remove = ds_remove, .name = "ds", }; diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c index 4f57056ed463..348a88691219 100644 --- a/arch/sparc/kernel/vio.c +++ b/arch/sparc/kernel/vio.c @@ -105,10 +105,10 @@ static int vio_device_remove(struct device *dev) * routines to do so at the moment. TBD */ - return drv->remove(vdev); + drv->remove(vdev); } - return 1; + return 0; } static ssize_t devspec_show(struct device *dev, |