diff options
author | Alan Stern <stern@rowland.harvard.edu> | 2005-11-23 23:43:50 (GMT) |
---|---|---|
committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-24 07:03:06 (GMT) |
commit | 2b08c8d0468866f86da97f836c6ac14338cb81a9 (patch) | |
tree | eca60a3b6811a825cd3642a666aa523a18fe484b /drivers | |
parent | 133747e8d1e912863edfb3869e36b97b9939d4fc (diff) | |
download | linux-fsl-qoriq-2b08c8d0468866f86da97f836c6ac14338cb81a9.tar.xz |
[PATCH] Small fixes to driver core
This patch (as603) makes a few small fixes to the driver core:
Change spin_lock_irq for a klist lock to spin_lock;
Fix reference count leaks;
Minor spelling and formatting changes.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by Patrick Mochel <mochel@digitalimplant.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/base/bus.c | 21 | ||||
-rw-r--r-- | drivers/base/dd.c | 8 |
2 files changed, 12 insertions, 17 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 03204bf..fa601b0 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -133,7 +133,7 @@ static struct kobj_type ktype_bus = { decl_subsys(bus, &ktype_bus, NULL); -/* Manually detach a device from it's associated driver. */ +/* Manually detach a device from its associated driver. */ static int driver_helper(struct device *dev, void *data) { const char *name = data; @@ -151,14 +151,13 @@ static ssize_t driver_unbind(struct device_driver *drv, int err = -ENODEV; dev = bus_find_device(bus, NULL, (void *)buf, driver_helper); - if ((dev) && - (dev->driver == drv)) { + if (dev && dev->driver == drv) { device_release_driver(dev); err = count; } - if (err) - return err; - return count; + put_device(dev); + put_bus(bus); + return err; } static DRIVER_ATTR(unbind, S_IWUSR, NULL, driver_unbind); @@ -175,16 +174,14 @@ static ssize_t driver_bind(struct device_driver *drv, int err = -ENODEV; dev = bus_find_device(bus, NULL, (void *)buf, driver_helper); - if ((dev) && - (dev->driver == NULL)) { + if (dev && dev->driver == NULL) { down(&dev->sem); err = driver_probe_device(drv, dev); up(&dev->sem); - put_device(dev); } - if (err) - return err; - return count; + put_device(dev); + put_bus(bus); + return err; } static DRIVER_ATTR(bind, S_IWUSR, NULL, driver_bind); diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 3565e97..3b419c9 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -62,7 +62,6 @@ void device_bind_driver(struct device * dev) * because we don't know the format of the ID structures, nor what * is to be considered a match and what is not. * - * * This function returns 1 if a match is found, an error if one * occurs (that is not -ENODEV or -ENXIO), and 0 otherwise. * @@ -158,7 +157,6 @@ static int __driver_attach(struct device * dev, void * data) driver_probe_device(drv, dev); up(&dev->sem); - return 0; } @@ -225,15 +223,15 @@ void driver_detach(struct device_driver * drv) struct device * dev; for (;;) { - spin_lock_irq(&drv->klist_devices.k_lock); + spin_lock(&drv->klist_devices.k_lock); if (list_empty(&drv->klist_devices.k_list)) { - spin_unlock_irq(&drv->klist_devices.k_lock); + spin_unlock(&drv->klist_devices.k_lock); break; } dev = list_entry(drv->klist_devices.k_list.prev, struct device, knode_driver.n_node); get_device(dev); - spin_unlock_irq(&drv->klist_devices.k_lock); + spin_unlock(&drv->klist_devices.k_lock); down(&dev->sem); if (dev->driver == drv) |