Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
  modules: do not try to add sysfs attributes if !CONFIG_SYSFS
  POWERPC: fix typo in pseries/power.c
  PM: Remove unbalanced mutex_unlock() from dpm_resume()
  UIO: fix Greg's stupid changes
  stable_kernel_rules: fix must already be in mainline
  ide: mark "ide=reverse" option as obsolete
  Driver core: Fix error handling in bus_add_driver().
  driver-core: fix kernel-doc function parameters
  cpufreq: fix kobject reference count handling
  slabinfo: fall back from /sys/kernel/slab to /sys/slab
  Fix broken utf-8 encodings in ja_JP translation of stable_kernel_rules.txt

Documentation/stable_kernel_rules.txt

@@ -16,8 +16,9 @@ Rules on what kind of patches are accepted, and which ones are not, into the
    race can be exploited is also provided.
  - It cannot contain any "trivial" fixes in it (spelling changes,
    whitespace cleanups, etc).
- - It must be accepted by the relevant subsystem maintainer.
  - It must follow the Documentation/SubmittingPatches rules.
+ - It or an equivalent fix must already exist in Linus' tree.  Quote the
+   respective commit ID in Linus' tree in your patch submission to -stable.
 
 
 Procedure for submitting patches to the -stable tree:
@@ -28,7 +29,9 @@ Procedure for submitting patches to the -stable tree:
    queue, or a NAK if the patch is rejected.  This response might take a few
    days, according to the developer's schedules.
  - If accepted, the patch will be added to the -stable queue, for review by
-   other developers.
+   other developers and by the relevant subsystem maintainer.
+ - If the stable@kernel.org address is added to a patch, when it goes into
+   Linus's tree it will automatically be emailed to the stable team.
  - Security patches should not be sent to this alias, but instead to the
    documented security@kernel.org address.
 

Documentation/vm/slabinfo.c

@@ -1123,7 +1123,7 @@ void read_slab_dir(void)
 	char *t;
 	int count;
 
-	if (chdir("/sys/kernel/slab"))
+	if (chdir("/sys/kernel/slab") && chdir("/sys/slab"))
 		fatal("SYSFS support for SLUB not active\n");
 
 	dir = opendir(".");

drivers/base/bus.c

@@ -658,9 +658,10 @@ int bus_add_driver(struct device_driver *drv)
 	pr_debug("bus: '%s': add driver %s\n", bus->name, drv->name);
 
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
-
+	if (!priv) {
+		error = -ENOMEM;
+		goto out_put_bus;
+	}
 	klist_init(&priv->klist_devices, NULL, NULL);
 	priv->driver = drv;
 	drv->p = priv;
@@ -668,7 +669,7 @@ int bus_add_driver(struct device_driver *drv)
 	error = kobject_init_and_add(&priv->kobj, &driver_ktype, NULL,
 				     "%s", drv->name);
 	if (error)
-		goto out_put_bus;
+		goto out_unregister;
 
 	if (drv->bus->p->drivers_autoprobe) {
 		error = driver_attach(drv);

drivers/base/driver.c

@@ -120,6 +120,9 @@ EXPORT_SYMBOL_GPL(driver_remove_file);
 
 /**
  * driver_add_kobj - add a kobject below the specified driver
+ * @drv: requesting device driver
+ * @kobj: kobject to add below this driver
+ * @fmt: format string that names the kobject
  *
  * You really don't want to do this, this is only here due to one looney
  * iseries driver, go poke those developers if you are annoyed about

drivers/base/power/main.c

@@ -479,7 +479,6 @@ static int dpm_suspend(pm_message_t state)
 			mutex_lock(&dpm_list_mtx);
 			if (list_empty(&dev->power.entry))
 				list_add(&dev->power.entry, &dpm_locked);
-			mutex_unlock(&dpm_list_mtx);
 			break;
 		}
 		mutex_lock(&dpm_list_mtx);
@@ -523,6 +522,7 @@ static void lock_all_devices(void)
 
 /**
  *	device_suspend - Save state and stop all devices in system.
+ *	@state: new power management state
  *
  *	Prevent new devices from being registered, then lock all devices
  *	and suspend them.

drivers/cpufreq/cpufreq.c

@@ -1006,14 +1006,6 @@ static int __cpufreq_remove_dev (struct sys_device * sys_dev)
 	}
 #endif
 
-
-	if (!kobject_get(&data->kobj)) {
-		spin_unlock_irqrestore(&cpufreq_driver_lock, flags);
-		cpufreq_debug_enable_ratelimit();
-		unlock_policy_rwsem_write(cpu);
-		return -EFAULT;
-	}
-
 #ifdef CONFIG_SMP
 
 #ifdef CONFIG_HOTPLUG_CPU

drivers/ide/ide.c

@@ -1229,7 +1229,7 @@ static int __init ide_setup(char *s)
 	if (!strcmp(s, "ide=reverse")) {
 		ide_scan_direction = 1;
 		printk(" : Enabled support for IDE inverse scan order.\n");
-		return 1;
+		goto obsolete_option;
 	}
 #endif
 

drivers/uio/uio.c

@@ -57,29 +57,29 @@ struct uio_map {
 };
 #define to_map(map) container_of(map, struct uio_map, kobj)
 
-
-static ssize_t map_attr_show(struct kobject *kobj, struct kobj_attribute *attr,
-			     char *buf)
+static ssize_t map_addr_show(struct uio_mem *mem, char *buf)
 {
-	struct uio_map *map = to_map(kobj);
-	struct uio_mem *mem = map->mem;
-
-	if (strncmp(attr->attr.name, "addr", 4) == 0)
 	return sprintf(buf, "0x%lx\n", mem->addr);
+}
 
-	if (strncmp(attr->attr.name, "size", 4) == 0)
+static ssize_t map_size_show(struct uio_mem *mem, char *buf)
+{
 	return sprintf(buf, "0x%lx\n", mem->size);
-
-	return -ENODEV;
 }
 
-static struct kobj_attribute attr_attribute =
-	__ATTR(addr, S_IRUGO, map_attr_show, NULL);
-static struct kobj_attribute size_attribute =
-	__ATTR(size, S_IRUGO, map_attr_show, NULL);
+struct uio_sysfs_entry {
+	struct attribute attr;
+	ssize_t (*show)(struct uio_mem *, char *);
+	ssize_t (*store)(struct uio_mem *, const char *, size_t);
+};
+
+static struct uio_sysfs_entry addr_attribute =
+	__ATTR(addr, S_IRUGO, map_addr_show, NULL);
+static struct uio_sysfs_entry size_attribute =
+	__ATTR(size, S_IRUGO, map_size_show, NULL);
 
 static struct attribute *attrs[] = {
-	&attr_attribute.attr,
+	&addr_attribute.attr,
 	&size_attribute.attr,
 	NULL,	/* need to NULL terminate the list of attributes */
 };
@@ -90,8 +90,28 @@ static void map_release(struct kobject *kobj)
 	kfree(map);
 }
 
+static ssize_t map_type_show(struct kobject *kobj, struct attribute *attr,
+			     char *buf)
+{
+	struct uio_map *map = to_map(kobj);
+	struct uio_mem *mem = map->mem;
+	struct uio_sysfs_entry *entry;
+
+	entry = container_of(attr, struct uio_sysfs_entry, attr);
+
+	if (!entry->show)
+		return -EIO;
+
+	return entry->show(mem, buf);
+}
+
+static struct sysfs_ops uio_sysfs_ops = {
+	.show = map_type_show,
+};
+
 static struct kobj_type map_attr_type = {
 	.release	= map_release,
+	.sysfs_ops	= &uio_sysfs_ops,
 	.default_attrs	= attrs,
 };
 

kernel/module.c

@@ -987,12 +987,11 @@ static unsigned long resolve_symbol(Elf_Shdr *sechdrs,
 	return ret;
 }
 
-
 /*
  * /sys/module/foo/sections stuff
  * J. Corbet <corbet@lwn.net>
  */
-#ifdef CONFIG_KALLSYMS
+#if defined(CONFIG_KALLSYMS) && defined(CONFIG_SYSFS)
 static ssize_t module_sect_show(struct module_attribute *mattr,
 				struct module *mod, char *buf)
 {
@@ -1188,7 +1187,7 @@ static inline void add_notes_attrs(struct module *mod, unsigned int nsect,
 static inline void remove_notes_attrs(struct module *mod)
 {
 }
-#endif /* CONFIG_KALLSYMS */
+#endif
 
 #ifdef CONFIG_SYSFS
 int module_add_modinfo_attrs(struct module *mod)
@@ -1231,9 +1230,7 @@ void module_remove_modinfo_attrs(struct module *mod)
 	}
 	kfree(mod->modinfo_attrs);
 }
-#endif
 
-#ifdef CONFIG_SYSFS
 int mod_sysfs_init(struct module *mod)
 {
 	int err;