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Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/bus.c20
-rw-r--r--drivers/base/dd.c38
-rw-r--r--drivers/base/power/main.c20
3 files changed, 39 insertions, 39 deletions
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index cca1aa10054..71f6af5c8b0 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -173,10 +173,10 @@ static ssize_t driver_unbind(struct device_driver *drv,
dev = bus_find_device_by_name(bus, NULL, buf);
if (dev && dev->driver == drv) {
if (dev->parent) /* Needed for USB */
- down(&dev->parent->sem);
+ device_lock(dev->parent);
device_release_driver(dev);
if (dev->parent)
- up(&dev->parent->sem);
+ device_unlock(dev->parent);
err = count;
}
put_device(dev);
@@ -200,12 +200,12 @@ static ssize_t driver_bind(struct device_driver *drv,
dev = bus_find_device_by_name(bus, NULL, buf);
if (dev && dev->driver == NULL && driver_match_device(drv, dev)) {
if (dev->parent) /* Needed for USB */
- down(&dev->parent->sem);
- down(&dev->sem);
+ device_lock(dev->parent);
+ device_lock(dev);
err = driver_probe_device(drv, dev);
- up(&dev->sem);
+ device_unlock(dev);
if (dev->parent)
- up(&dev->parent->sem);
+ device_unlock(dev->parent);
if (err > 0) {
/* success */
@@ -744,10 +744,10 @@ static int __must_check bus_rescan_devices_helper(struct device *dev,
if (!dev->driver) {
if (dev->parent) /* Needed for USB */
- down(&dev->parent->sem);
+ device_lock(dev->parent);
ret = device_attach(dev);
if (dev->parent)
- up(&dev->parent->sem);
+ device_unlock(dev->parent);
}
return ret < 0 ? ret : 0;
}
@@ -779,10 +779,10 @@ int device_reprobe(struct device *dev)
{
if (dev->driver) {
if (dev->parent) /* Needed for USB */
- down(&dev->parent->sem);
+ device_lock(dev->parent);
device_release_driver(dev);
if (dev->parent)
- up(&dev->parent->sem);
+ device_unlock(dev->parent);
}
return bus_rescan_devices_helper(dev, NULL);
}
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index ee95c76bfd3..c89291f8a16 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -85,7 +85,7 @@ static void driver_sysfs_remove(struct device *dev)
* for before calling this. (It is ok to call with no other effort
* from a driver's probe() method.)
*
- * This function must be called with @dev->sem held.
+ * This function must be called with the device lock held.
*/
int device_bind_driver(struct device *dev)
{
@@ -190,8 +190,8 @@ EXPORT_SYMBOL_GPL(wait_for_device_probe);
* This function returns -ENODEV if the device is not registered,
* 1 if the device is bound successfully and 0 otherwise.
*
- * This function must be called with @dev->sem held. When called for a
- * USB interface, @dev->parent->sem must be held as well.
+ * This function must be called with @dev lock held. When called for a
+ * USB interface, @dev->parent lock must be held as well.
*/
int driver_probe_device(struct device_driver *drv, struct device *dev)
{
@@ -233,13 +233,13 @@ static int __device_attach(struct device_driver *drv, void *data)
* 0 if no matching driver was found;
* -ENODEV if the device is not registered.
*
- * When called for a USB interface, @dev->parent->sem must be held.
+ * When called for a USB interface, @dev->parent lock must be held.
*/
int device_attach(struct device *dev)
{
int ret = 0;
- down(&dev->sem);
+ device_lock(dev);
if (dev->driver) {
ret = device_bind_driver(dev);
if (ret == 0)
@@ -253,7 +253,7 @@ int device_attach(struct device *dev)
ret = bus_for_each_drv(dev->bus, NULL, dev, __device_attach);
pm_runtime_put_sync(dev);
}
- up(&dev->sem);
+ device_unlock(dev);
return ret;
}
EXPORT_SYMBOL_GPL(device_attach);
@@ -276,13 +276,13 @@ static int __driver_attach(struct device *dev, void *data)
return 0;
if (dev->parent) /* Needed for USB */
- down(&dev->parent->sem);
- down(&dev->sem);
+ device_lock(dev->parent);
+ device_lock(dev);
if (!dev->driver)
driver_probe_device(drv, dev);
- up(&dev->sem);
+ device_unlock(dev);
if (dev->parent)
- up(&dev->parent->sem);
+ device_unlock(dev->parent);
return 0;
}
@@ -303,8 +303,8 @@ int driver_attach(struct device_driver *drv)
EXPORT_SYMBOL_GPL(driver_attach);
/*
- * __device_release_driver() must be called with @dev->sem held.
- * When called for a USB interface, @dev->parent->sem must be held as well.
+ * __device_release_driver() must be called with @dev lock held.
+ * When called for a USB interface, @dev->parent lock must be held as well.
*/
static void __device_release_driver(struct device *dev)
{
@@ -343,7 +343,7 @@ static void __device_release_driver(struct device *dev)
* @dev: device.
*
* Manually detach device from driver.
- * When called for a USB interface, @dev->parent->sem must be held.
+ * When called for a USB interface, @dev->parent lock must be held.
*/
void device_release_driver(struct device *dev)
{
@@ -352,9 +352,9 @@ void device_release_driver(struct device *dev)
* within their ->remove callback for the same device, they
* will deadlock right here.
*/
- down(&dev->sem);
+ device_lock(dev);
__device_release_driver(dev);
- up(&dev->sem);
+ device_unlock(dev);
}
EXPORT_SYMBOL_GPL(device_release_driver);
@@ -381,13 +381,13 @@ void driver_detach(struct device_driver *drv)
spin_unlock(&drv->p->klist_devices.k_lock);
if (dev->parent) /* Needed for USB */
- down(&dev->parent->sem);
- down(&dev->sem);
+ device_lock(dev->parent);
+ device_lock(dev);
if (dev->driver == drv)
__device_release_driver(dev);
- up(&dev->sem);
+ device_unlock(dev);
if (dev->parent)
- up(&dev->parent->sem);
+ device_unlock(dev->parent);
put_device(dev);
}
}
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 0e26a6f6fd4..d477f4dc5e5 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -35,8 +35,8 @@
* because children are guaranteed to be discovered after parents, and
* are inserted at the back of the list on discovery.
*
- * Since device_pm_add() may be called with a device semaphore held,
- * we must never try to acquire a device semaphore while holding
+ * Since device_pm_add() may be called with a device lock held,
+ * we must never try to acquire a device lock while holding
* dpm_list_mutex.
*/
@@ -508,7 +508,7 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
TRACE_RESUME(0);
dpm_wait(dev->parent, async);
- down(&dev->sem);
+ device_lock(dev);
dev->power.status = DPM_RESUMING;
@@ -543,7 +543,7 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
}
}
End:
- up(&dev->sem);
+ device_unlock(dev);
complete_all(&dev->power.completion);
TRACE_RESUME(error);
@@ -629,7 +629,7 @@ static void dpm_resume(pm_message_t state)
*/
static void device_complete(struct device *dev, pm_message_t state)
{
- down(&dev->sem);
+ device_lock(dev);
if (dev->class && dev->class->pm && dev->class->pm->complete) {
pm_dev_dbg(dev, state, "completing class ");
@@ -646,7 +646,7 @@ static void device_complete(struct device *dev, pm_message_t state)
dev->bus->pm->complete(dev);
}
- up(&dev->sem);
+ device_unlock(dev);
}
/**
@@ -809,7 +809,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
int error = 0;
dpm_wait_for_children(dev, async);
- down(&dev->sem);
+ device_lock(dev);
if (async_error)
goto End;
@@ -849,7 +849,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
dev->power.status = DPM_OFF;
End:
- up(&dev->sem);
+ device_unlock(dev);
complete_all(&dev->power.completion);
return error;
@@ -938,7 +938,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
{
int error = 0;
- down(&dev->sem);
+ device_lock(dev);
if (dev->bus && dev->bus->pm && dev->bus->pm->prepare) {
pm_dev_dbg(dev, state, "preparing ");
@@ -962,7 +962,7 @@ static int device_prepare(struct device *dev, pm_message_t state)
suspend_report_result(dev->class->pm->prepare, error);
}
End:
- up(&dev->sem);
+ device_unlock(dev);
return error;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-02 23:27:16 +0000