Merge branch 'linus' into core/percpu

[safe/jmp/linux-2.6] / drivers / base / dd.c

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index a5cde94..1352312 100644 (file)
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -18,9 +18,11 @@
  */
 
 #include <linux/device.h>
+#include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/kthread.h>
 #include <linux/wait.h>
+#include <linux/async.h>
 
 #include "base.h"
 #include "power/power.h"
@@ -30,12 +32,12 @@ static void driver_bound(struct device *dev)
 {
        if (klist_node_attached(&dev->knode_driver)) {
                printk(KERN_WARNING "%s: device %s already bound\n",
-                       __FUNCTION__, kobject_name(&dev->kobj));
+                       __func__, kobject_name(&dev->kobj));
                return;
        }
 
-       pr_debug("driver: '%s': %s: bound to device '%s'\n", dev->bus_id,
-                __FUNCTION__, dev->driver->name);
+       pr_debug("driver: '%s': %s: bound to device '%s'\n", dev_name(dev),
+                __func__, dev->driver->name);
 
        if (dev->bus)
                blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
@@ -104,13 +106,13 @@ static int really_probe(struct device *dev, struct device_driver *drv)
 
        atomic_inc(&probe_count);
        pr_debug("bus: '%s': %s: probing driver %s with device %s\n",
-                drv->bus->name, __FUNCTION__, drv->name, dev->bus_id);
+                drv->bus->name, __func__, drv->name, dev_name(dev));
        WARN_ON(!list_empty(&dev->devres_head));
 
        dev->driver = drv;
        if (driver_sysfs_add(dev)) {
                printk(KERN_ERR "%s: driver_sysfs_add(%s) failed\n",
-                       __FUNCTION__, dev->bus_id);
+                       __func__, dev_name(dev));
                goto probe_failed;
        }
 
@@ -127,7 +129,7 @@ static int really_probe(struct device *dev, struct device_driver *drv)
        driver_bound(dev);
        ret = 1;
        pr_debug("bus: '%s': %s: bound device %s to driver %s\n",
-                drv->bus->name, __FUNCTION__, dev->bus_id, drv->name);
+                drv->bus->name, __func__, dev_name(dev), drv->name);
        goto done;
 
 probe_failed:
@@ -139,7 +141,7 @@ probe_failed:
                /* driver matched but the probe failed */
                printk(KERN_WARNING
                       "%s: probe of %s failed with error %d\n",
-                      drv->name, dev->bus_id, ret);
+                      drv->name, dev_name(dev), ret);
        }
        /*
         * Ignore errors returned by ->probe so that the next driver can try
@@ -160,7 +162,7 @@ done:
  */
 int driver_probe_done(void)
 {
-       pr_debug("%s: probe_count = %d\n", __FUNCTION__,
+       pr_debug("%s: probe_count = %d\n", __func__,
                 atomic_read(&probe_count));
        if (atomic_read(&probe_count))
                return -EBUSY;
@@ -168,6 +170,21 @@ int driver_probe_done(void)
 }
 
 /**
+ * wait_for_device_probe
+ * Wait for device probing to be completed.
+ *
+ * Note: this function polls at 100 msec intervals.
+ */
+int wait_for_device_probe(void)
+{
+       /* wait for the known devices to complete their probing */
+       while (driver_probe_done() != 0)
+               msleep(100);
+       async_synchronize_full();
+       return 0;
+}
+
+/**
  * driver_probe_device - attempt to bind device & driver together
  * @drv: driver to bind a device to
  * @dev: device to try to bind to the driver
@@ -194,7 +211,7 @@ int driver_probe_device(struct device_driver *drv, struct device *dev)
                goto done;
 
        pr_debug("bus: '%s': %s: matched device %s with driver %s\n",
-                drv->bus->name, __FUNCTION__, dev->bus_id, drv->name);
+                drv->bus->name, __func__, dev_name(dev), drv->name);
 
        ret = really_probe(dev, drv);
 
@@ -257,6 +274,9 @@ static int __driver_attach(struct device *dev, void *data)
         * is an error.
         */
 
+       if (drv->bus->match && !drv->bus->match(dev, drv))
+               return 0;
+
        if (dev->parent)        /* Needed for USB */
                down(&dev->parent->sem);
        down(&dev->sem);
@@ -295,7 +315,6 @@ static void __device_release_driver(struct device *dev)
        drv = dev->driver;
        if (drv) {
                driver_sysfs_remove(dev);
-               sysfs_remove_link(&dev->kobj, "driver");
 
                if (dev->bus)
                        blocking_notifier_call_chain(&dev->bus->p->bus_notifier,