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.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
---
arch/sparc/include/asm/vio.h | 2 +-
arch/sparc/kernel/ds.c | 6 ------
arch/sparc/kernel/vio.c | 4 ++--
drivers/block/sunvdc.c | 3 +--
drivers/net/ethernet/sun/ldmvsw.c | 4 +---
drivers/net/ethernet/sun/sunvnet.c | 3 +--
drivers/tty/vcc.c | 4 +---
7 files changed, 7 insertions(+), 19 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 @@ static int ds_probe(struct vio_dev *vdev, const struct vio_device_id *id)
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,
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 39aeebc6837d..1547d4345ad8 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -1071,7 +1071,7 @@ static int vdc_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
return err;
}
-static int vdc_port_remove(struct vio_dev *vdev)
+static void vdc_port_remove(struct vio_dev *vdev)
{
struct vdc_port *port = dev_get_drvdata(&vdev->dev);
@@ -1094,7 +1094,6 @@ static int vdc_port_remove(struct vio_dev *vdev)
kfree(port);
}
- return 0;
}
static void vdc_requeue_inflight(struct vdc_port *port)
diff --git a/drivers/net/ethernet/sun/ldmvsw.c b/drivers/net/ethernet/sun/ldmvsw.c
index 01ea0d6f8819..50bd4e3b0af9 100644
--- a/drivers/net/ethernet/sun/ldmvsw.c
+++ b/drivers/net/ethernet/sun/ldmvsw.c
@@ -404,7 +404,7 @@ static int vsw_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
return err;
}
-static int vsw_port_remove(struct vio_dev *vdev)
+static void vsw_port_remove(struct vio_dev *vdev)
{
struct vnet_port *port = dev_get_drvdata(&vdev->dev);
unsigned long flags;
@@ -430,8 +430,6 @@ static int vsw_port_remove(struct vio_dev *vdev)
free_netdev(port->dev);
}
-
- return 0;
}
static void vsw_cleanup(void)
diff --git a/drivers/net/ethernet/sun/sunvnet.c b/drivers/net/ethernet/sun/sunvnet.c
index 96b883f965f6..58ee89223951 100644
--- a/drivers/net/ethernet/sun/sunvnet.c
+++ b/drivers/net/ethernet/sun/sunvnet.c
@@ -510,7 +510,7 @@ static int vnet_port_probe(struct vio_dev *vdev, const struct vio_device_id *id)
return err;
}
-static int vnet_port_remove(struct vio_dev *vdev)
+static void vnet_port_remove(struct vio_dev *vdev)
{
struct vnet_port *port = dev_get_drvdata(&vdev->dev);
@@ -533,7 +533,6 @@ static int vnet_port_remove(struct vio_dev *vdev)
kfree(port);
}
- return 0;
}
static const struct vio_device_id vnet_port_match[] = {
diff --git a/drivers/tty/vcc.c b/drivers/tty/vcc.c
index 0a3a71e14df4..0c9b291ef307 100644
--- a/drivers/tty/vcc.c
+++ b/drivers/tty/vcc.c
@@ -668,7 +668,7 @@ static int vcc_probe(struct vio_dev *vdev, const struct vio_device_id *id)
*
* Return: status of removal
*/
-static int vcc_remove(struct vio_dev *vdev)
+static void vcc_remove(struct vio_dev *vdev)
{
struct vcc_port *port = dev_get_drvdata(&vdev->dev);
@@ -703,8 +703,6 @@ static int vcc_remove(struct vio_dev *vdev)
kfree(port->domain);
kfree(port);
}
-
- return 0;
}
static const struct vio_device_id vcc_match[] = {
--
2.30.2
