diff options
| author | Russell King <rmk@arm.linux.org.uk> | 2006-01-05 14:29:51 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-01-13 11:26:04 -0800 |
| commit | 594c8281f90560faf9632d91bb9d402cbe560e63 (patch) | |
| tree | abeb32df086cfd204accad33b11040381c31689d | |
| parent | bd37e5a951ad2123d3f51f59c407b5242946b6ba (diff) | |
[PATCH] Add bus_type probe, remove, shutdown methods.
Add bus_type probe, remove and shutdown methods to replace the
corresponding methods in struct device_driver. This matches
the way we handle the suspend/resume methods.
Since the bus methods override the device_driver methods, warn
if a device driver is registered whose methods will not be
called.
The long-term idea is to remove the device_driver methods entirely.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/base/dd.c | 12 | ||||
| -rw-r--r-- | drivers/base/driver.c | 5 | ||||
| -rw-r--r-- | drivers/base/power/shutdown.c | 5 | ||||
| -rw-r--r-- | include/linux/device.h | 3 |
4 files changed, 22 insertions, 3 deletions
diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 2b905016664..730a9ce0a14 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -78,7 +78,13 @@ int driver_probe_device(struct device_driver * drv, struct device * dev) pr_debug("%s: Matched Device %s with Driver %s\n", drv->bus->name, dev->bus_id, drv->name); dev->driver = drv; - if (drv->probe) { + if (dev->bus->probe) { + ret = dev->bus->probe(dev); + if (ret) { + dev->driver = NULL; + goto ProbeFailed; + } + } else if (drv->probe) { ret = drv->probe(dev); if (ret) { dev->driver = NULL; @@ -203,7 +209,9 @@ static void __device_release_driver(struct device * dev) sysfs_remove_link(&dev->kobj, "driver"); klist_remove(&dev->knode_driver); - if (drv->remove) + if (dev->bus->remove) + dev->bus->remove(dev); + else if (drv->remove) drv->remove(dev); dev->driver = NULL; put_driver(drv); diff --git a/drivers/base/driver.c b/drivers/base/driver.c index 161f3a390d9..b400314e1c6 100644 --- a/drivers/base/driver.c +++ b/drivers/base/driver.c @@ -171,6 +171,11 @@ static void klist_devices_put(struct klist_node *n) */ int driver_register(struct device_driver * drv) { + if ((drv->bus->probe && drv->probe) || + (drv->bus->remove && drv->remove) || + (drv->bus->shutdown && drv->shutdown)) { + printk(KERN_WARNING "Driver '%s' needs updating - please use bus_type methods\n", drv->name); + } klist_init(&drv->klist_devices, klist_devices_get, klist_devices_put); init_completion(&drv->unloaded); return bus_add_driver(drv); diff --git a/drivers/base/power/shutdown.c b/drivers/base/power/shutdown.c index f50a08be424..a47bb74da72 100644 --- a/drivers/base/power/shutdown.c +++ b/drivers/base/power/shutdown.c @@ -40,7 +40,10 @@ void device_shutdown(void) down_write(&devices_subsys.rwsem); list_for_each_entry_reverse(dev, &devices_subsys.kset.list, kobj.entry) { - if (dev->driver && dev->driver->shutdown) { + if (dev->bus && dev->bus->shutdown) { + dev_dbg(dev, "shutdown\n"); + dev->bus->shutdown(dev); + } else if (dev->driver && dev->driver->shutdown) { dev_dbg(dev, "shutdown\n"); dev->driver->shutdown(dev); } diff --git a/include/linux/device.h b/include/linux/device.h index 0cdee78e5ce..58df18d9cd3 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -49,6 +49,9 @@ struct bus_type { int (*match)(struct device * dev, struct device_driver * drv); int (*uevent)(struct device *dev, char **envp, int num_envp, char *buffer, int buffer_size); + int (*probe)(struct device * dev); + int (*remove)(struct device * dev); + void (*shutdown)(struct device * dev); int (*suspend)(struct device * dev, pm_message_t state); int (*resume)(struct device * dev); }; |