Merge tag 'driver-core-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the "big" set of driver core patches for 4.21-rc1.

  It's not really big, just a number of small changes for some reported
  issues, some documentation updates to hopefully make it harder for
  people to abuse the driver model, and some other minor cleanups.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'driver-core-4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  mm, memory_hotplug: update a comment in unregister_memory()
  component: convert to DEFINE_SHOW_ATTRIBUTE
  sysfs: Disable lockdep for driver bind/unbind files
  driver core: Add missing dev->bus->need_parent_lock checks
  kobject: return error code if writing /sys/.../uevent fails
  driver core: Move async_synchronize_full call
  driver core: platform: Respect return code of platform_device_register_full()
  kref/kobject: Improve documentation
  drivers/base/memory.c: Use DEVICE_ATTR_RO and friends
  driver core: Replace simple_strto{l,ul} by kstrtou{l,ul}
  kernfs: Improve kernfs_notify() poll notification latency
  kobject: Fix warnings in lib/kobject_uevent.c
  kobject: drop unnecessary cast "%llu" for u64
  driver core: fix comments for device_block_probing()
  driver core: Replace simple_strtol by kstrtoint

2 files changed, 4 insertions, 2 deletions

diff --git a/lib/kobject.c b/lib/kobject.c
index 97d86dc17c42..b72e00fd7d09 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -639,7 +639,7 @@ static void kobject_cleanup(struct kobject *kobj)
                  kobject_name(kobj), kobj, __func__, kobj->parent);
 
         if (t && !t->release)
-                pr_debug("kobject: '%s' (%p): does not have a release() function, it is broken and must be fixed.\n",
+                pr_debug("kobject: '%s' (%p): does not have a release() function, it is broken and must be fixed. See Documentation/kobject.txt.\n",
                          kobject_name(kobj), kobj);
 
         /* send "remove" if the caller did not do it but sent "add" */
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 63d0816ab23b..27c6118afd1c 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -240,6 +240,7 @@ static int kobj_usermode_filter(struct kobject *kobj)
         ops = kobj_ns_ops(kobj);
         if (ops) {
                 const void *init_ns, *ns;
+
                 ns = kobj->ktype->namespace(kobj);
                 init_ns = ops->initial_ns();
                 return ns != init_ns;
@@ -390,6 +391,7 @@ static int kobject_uevent_net_broadcast(struct kobject *kobj,
         ops = kobj_ns_ops(kobj);
         if (!ops && kobj->kset) {
                 struct kobject *ksobj = &kobj->kset->kobj;
+
                 if (ksobj->parent != NULL)
                         ops = kobj_ns_ops(ksobj->parent);
         }
@@ -579,7 +581,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 
         mutex_lock(&uevent_sock_mutex);
         /* we will send an event, so request a new sequence number */
-        retval = add_uevent_var(env, "SEQNUM=%llu", (unsigned long long)++uevent_seqnum);
+        retval = add_uevent_var(env, "SEQNUM=%llu", ++uevent_seqnum);
         if (retval) {
                 mutex_unlock(&uevent_sock_mutex);
                 goto exit;