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authorDave Young <hidave.darkstar@gmail.com>2008-01-28 16:56:11 +0800
committerGreg Kroah-Hartman <gregkh@suse.de>2008-02-02 15:14:49 -0800
commitcd35449b93ac128282c1f1f720e84c5935f9018e (patch)
tree51a32f111615f165adf7c09f336072331a80b5a9 /drivers/base
parent9617c3e460bbccb6d9496a1f1e6903eb81f336e9 (diff)
downloadop-kernel-dev-cd35449b93ac128282c1f1f720e84c5935f9018e.zip
op-kernel-dev-cd35449b93ac128282c1f1f720e84c5935f9018e.tar.gz
driver core: convert to use class_find_device api
Convert to use class_find_device api in drivers/base/core.c Signed-off-by: Dave Young <hidave.darkstar@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/core.c32
1 files changed, 11 insertions, 21 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index b172787..a0cfda5 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1144,25 +1144,11 @@ error:
}
EXPORT_SYMBOL_GPL(device_create);
-/**
- * find_device - finds a device that was created with device_create()
- * @class: pointer to the struct class that this device was registered with
- * @devt: the dev_t of the device that was previously registered
- */
-static struct device *find_device(struct class *class, dev_t devt)
+static int __match_devt(struct device *dev, void *data)
{
- struct device *dev = NULL;
- struct device *dev_tmp;
+ dev_t *devt = data;
- down(&class->sem);
- list_for_each_entry(dev_tmp, &class->devices, node) {
- if (dev_tmp->devt == devt) {
- dev = dev_tmp;
- break;
- }
- }
- up(&class->sem);
- return dev;
+ return dev->devt == *devt;
}
/**
@@ -1177,9 +1163,11 @@ void device_destroy(struct class *class, dev_t devt)
{
struct device *dev;
- dev = find_device(class, devt);
- if (dev)
+ dev = class_find_device(class, &devt, __match_devt);
+ if (dev) {
+ put_device(dev);
device_unregister(dev);
+ }
}
EXPORT_SYMBOL_GPL(device_destroy);
@@ -1203,9 +1191,11 @@ void destroy_suspended_device(struct class *class, dev_t devt)
{
struct device *dev;
- dev = find_device(class, devt);
- if (dev)
+ dev = class_find_device(class, &devt, __match_devt);
+ if (dev) {
device_pm_schedule_removal(dev);
+ put_device(dev);
+ }
}
EXPORT_SYMBOL_GPL(destroy_suspended_device);
#endif /* CONFIG_PM_SLEEP */
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