diff mbox series

[09/21] driver core: bus: bus_get_kset() cleanup

Message ID	20230208111330.439504-10-gregkh@linuxfoundation.org
State	New
Headers	Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "Rafael J. Wysocki" <rafael@kernel.org> Subject: [PATCH 09/21] driver core: bus: bus_get_kset() cleanup Date: Wed, 8 Feb 2023 12:13:18 +0100 Message-Id: <20230208111330.439504-10-gregkh@linuxfoundation.org> In-Reply-To: <20230208111330.439504-1-gregkh@linuxfoundation.org> References: <20230208111330.439504-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	driver core: bus: remove private "backpointer" from struct bus_type \| [00/21] driver core: bus: remove private "backpointer" from struct bus_type [01/21] driver core: add local subsys_get and subsys_put functions [02/21] driver core: bus: implement bus_get/put() without the private pointer [03/21] driver core: bus: constantify the bus_find_* functions [04/21] driver core: bus: convert bus_create/remove_file to be constant [05/21] driver core: bus: sysfs function cleanups [06/21] driver core: bus: bus_add/probe/remove_device() cleanups [07/21] driver core: bus: bus_register/unregister() cleanups [08/21] driver core: bus: subsys_interface_register/unregister() cleanups [09/21] driver core: bus: bus_get_kset() cleanup [10/21] driver core: bus: bus_register/unregister_notifier() cleanups [11/21] driver core: bus: bus_add/remove_driver() cleanups [12/21] driver core: bus: bus iterator cleanups [13/21] driver core: bus: clean up bus_sort_breadthfirst() [14/21] driver core: move driver_find() to bus.c [15/21] driver core: bus: clean up driver_find() [16/21] driver core: create bus_is_registered() [17/21] driver core: remove private pointer from struct bus_type [18/21] driver core: bus: constify bus_register/unregister_notifier() [19/21] driver core: bus: constify bus_get_kset() [20/21] driver core: bus: constify some internal functions [21/21] driver core: bus: constify bus_unregister()

Commit Message

Greg KH Feb. 8, 2023, 11:13 a.m. UTC

  Convert the bus_get_kset() function function to use bus_to_subsys() and
not use the back-pointer to the private structure.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/bus.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff mbox series

Patch

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index deed62509a62..90627c68d02b 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -956,7 +956,16 @@  void bus_notify(struct device *dev, enum bus_notifier_event value)
 
 struct kset *bus_get_kset(struct bus_type *bus)
 {
-	return &bus->p->subsys;
+	struct subsys_private *sp = bus_to_subsys(bus);
+	struct kset *kset;
+
+	if (!sp)
+		return NULL;
+
+	kset = &sp->subsys;
+	subsys_put(sp);
+
+	return kset;
 }
 EXPORT_SYMBOL_GPL(bus_get_kset);