Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 01/21] driver core: add local subsys_get and subsys_put functions | Date | Wed, 8 Feb 2023 12:13:10 +0100 |
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We need to control the reference count of the subsys private structure instead of directly manipulating the kset reference count of it, so wrap that logic up in a subsys_get() and subsys_put() function to make it more obvious as to what is happening.
Cc: "Rafael J. Wysocki" <rafael@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/base/base.h | 13 +++++++++++++ 1 file changed, 13 insertions(+)
diff --git a/drivers/base/base.h b/drivers/base/base.h index 0e806f641079..9e06c18c7a64 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -57,6 +57,19 @@ struct subsys_private { }; #define to_subsys_private(obj) container_of_const(obj, struct subsys_private, subsys.kobj) +static inline struct subsys_private *subsys_get(struct subsys_private *sp) +{ + if (sp) + kset_get(&sp->subsys); + return sp; +} + +static inline void subsys_put(struct subsys_private *sp) +{ + if (sp) + kset_put(&sp->subsys); +} + struct driver_private { struct kobject kobj; struct klist klist_devices; -- 2.39.1
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