Merge branch 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6

* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (44 commits)
  debugfs: Silence DEBUG_STRICT_USER_COPY_CHECKS=y warning
  sysfs: remove "last sysfs file:" line from the oops messages
  drivers/base/memory.c: fix warning due to "memory hotplug: Speed up add/remove when blocks are larger than PAGES_PER_SECTION"
  memory hotplug: Speed up add/remove when blocks are larger than PAGES_PER_SECTION
  SYSFS: Fix erroneous comments for sysfs_update_group().
  driver core: remove the driver-model structures from the documentation
  driver core: Add the device driver-model structures to kerneldoc
  Translated Documentation/email-clients.txt
  RAW driver: Remove call to kobject_put().
  reboot: disable usermodehelper to prevent fs access
  efivars: prevent oops on unload when efi is not enabled
  Allow setting of number of raw devices as a module parameter
  Introduce CONFIG_GOOGLE_FIRMWARE
  driver: Google Memory Console
  driver: Google EFI SMI
  x86: Better comments for get_bios_ebda()
  x86: get_bios_ebda_length()
  misc: fix ti-st build issues
  params.c: Use new strtobool function to process boolean inputs
  debugfs: move to new strtobool
  ...

Fix up trivial conflicts in fs/debugfs/file.c due to the same patch
being applied twice, and an unrelated cleanup nearby.

4 files changed, 41 insertions, 45 deletions

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 81b78ede37c..bc8729d603a 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -400,7 +400,7 @@ static void device_remove_groups(struct device *dev,
 static int device_add_attrs(struct device *dev)
 {
 	struct class *class = dev->class;
-	struct device_type *type = dev->type;
+	const struct device_type *type = dev->type;
 	int error;
 
 	if (class) {
@@ -440,7 +440,7 @@ static int device_add_attrs(struct device *dev)
 static void device_remove_attrs(struct device *dev)
 {
 	struct class *class = dev->class;
-	struct device_type *type = dev->type;
+	const struct device_type *type = dev->type;
 
 	device_remove_groups(dev, dev->groups);
 
@@ -1314,8 +1314,7 @@ EXPORT_SYMBOL_GPL(put_device);
 EXPORT_SYMBOL_GPL(device_create_file);
 EXPORT_SYMBOL_GPL(device_remove_file);
 
-struct root_device
-{
+struct root_device {
 	struct device dev;
 	struct module *owner;
 };
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 29917c7506c..6658da743c3 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -245,6 +245,10 @@ int device_attach(struct device *dev)
 
 	device_lock(dev);
 	if (dev->driver) {
+		if (klist_node_attached(&dev->p->knode_driver)) {
+			ret = 1;
+			goto out_unlock;
+		}
 		ret = device_bind_driver(dev);
 		if (ret == 0)
 			ret = 1;
@@ -257,6 +261,7 @@ int device_attach(struct device *dev)
 		ret = bus_for_each_drv(dev->bus, NULL, dev, __device_attach);
 		pm_runtime_put_sync(dev);
 	}
+out_unlock:
 	device_unlock(dev);
 	return ret;
 }
@@ -408,17 +413,16 @@ void *dev_get_drvdata(const struct device *dev)
 }
 EXPORT_SYMBOL(dev_get_drvdata);
 
-void dev_set_drvdata(struct device *dev, void *data)
+int dev_set_drvdata(struct device *dev, void *data)
 {
 	int error;
 
-	if (!dev)
-		return;
 	if (!dev->p) {
 		error = device_private_init(dev);
 		if (error)
-			return;
+			return error;
 	}
 	dev->p->driver_data = data;
+	return 0;
 }
 EXPORT_SYMBOL(dev_set_drvdata);
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 3da6a43b775..0a134a424a3 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -48,7 +48,8 @@ static const char *memory_uevent_name(struct kset *kset, struct kobject *kobj)
 	return MEMORY_CLASS_NAME;
 }
 
-static int memory_uevent(struct kset *kset, struct kobject *obj, struct kobj_uevent_env *env)
+static int memory_uevent(struct kset *kset, struct kobject *obj,
+			struct kobj_uevent_env *env)
 {
 	int retval = 0;
 
@@ -228,10 +229,11 @@ int memory_isolate_notify(unsigned long val, void *v)
  * OK to have direct references to sparsemem variables in here.
  */
 static int
-memory_section_action(unsigned long phys_index, unsigned long action)
+memory_block_action(unsigned long phys_index, unsigned long action)
 {
 	int i;
 	unsigned long start_pfn, start_paddr;
+	unsigned long nr_pages = PAGES_PER_SECTION * sections_per_block;
 	struct page *first_page;
 	int ret;
 
@@ -243,7 +245,7 @@ memory_section_action(unsigned long phys_index, unsigned long action)
 	 * that way.
 	 */
 	if (action == MEM_ONLINE) {
-		for (i = 0; i < PAGES_PER_SECTION; i++) {
+		for (i = 0; i < nr_pages; i++) {
 			if (PageReserved(first_page+i))
 				continue;
 
@@ -257,12 +259,12 @@ memory_section_action(unsigned long phys_index, unsigned long action)
 	switch (action) {
 		case MEM_ONLINE:
 			start_pfn = page_to_pfn(first_page);
-			ret = online_pages(start_pfn, PAGES_PER_SECTION);
+			ret = online_pages(start_pfn, nr_pages);
 			break;
 		case MEM_OFFLINE:
 			start_paddr = page_to_pfn(first_page) << PAGE_SHIFT;
 			ret = remove_memory(start_paddr,
-					    PAGES_PER_SECTION << PAGE_SHIFT);
+					    nr_pages << PAGE_SHIFT);
 			break;
 		default:
 			WARN(1, KERN_WARNING "%s(%ld, %ld) unknown action: "
@@ -276,7 +278,7 @@ memory_section_action(unsigned long phys_index, unsigned long action)
 static int memory_block_change_state(struct memory_block *mem,
 		unsigned long to_state, unsigned long from_state_req)
 {
-	int i, ret = 0;
+	int ret = 0;
 
 	mutex_lock(&mem->state_mutex);
 
@@ -288,20 +290,11 @@ static int memory_block_change_state(struct memory_block *mem,
 	if (to_state == MEM_OFFLINE)
 		mem->state = MEM_GOING_OFFLINE;
 
-	for (i = 0; i < sections_per_block; i++) {
-		ret = memory_section_action(mem->start_section_nr + i,
-					    to_state);
-		if (ret)
-			break;
-	}
-
-	if (ret) {
-		for (i = 0; i < sections_per_block; i++)
-			memory_section_action(mem->start_section_nr + i,
-					      from_state_req);
+	ret = memory_block_action(mem->start_section_nr, to_state);
 
+	if (ret)
 		mem->state = from_state_req;
-	} else
+	else
 		mem->state = to_state;
 
 out:
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 48425f18302..1c291af637b 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -192,18 +192,18 @@ EXPORT_SYMBOL_GPL(platform_device_alloc);
 int platform_device_add_resources(struct platform_device *pdev,
 				  const struct resource *res, unsigned int num)
 {
-	struct resource *r;
+	struct resource *r = NULL;
 
-	if (!res)
-		return 0;
-
-	r = kmemdup(res, sizeof(struct resource) * num, GFP_KERNEL);
-	if (r) {
-		pdev->resource = r;
-		pdev->num_resources = num;
-		return 0;
+	if (res) {
+		r = kmemdup(res, sizeof(struct resource) * num, GFP_KERNEL);
+		if (!r)
+			return -ENOMEM;
 	}
-	return -ENOMEM;
+
+	kfree(pdev->resource);
+	pdev->resource = r;
+	pdev->num_resources = num;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(platform_device_add_resources);
 
@@ -220,17 +220,17 @@ EXPORT_SYMBOL_GPL(platform_device_add_resources);
 int platform_device_add_data(struct platform_device *pdev, const void *data,
 			     size_t size)
 {
-	void *d;
+	void *d = NULL;
 
-	if (!data)
-		return 0;
-
-	d = kmemdup(data, size, GFP_KERNEL);
-	if (d) {
-		pdev->dev.platform_data = d;
-		return 0;
+	if (data) {
+		d = kmemdup(data, size, GFP_KERNEL);
+		if (!d)
+			return -ENOMEM;
 	}
-	return -ENOMEM;
+
+	kfree(pdev->dev.platform_data);
+	pdev->dev.platform_data = d;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(platform_device_add_data);