Commit 7bbb89b4 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

driver core: change to_subsys_private() to use container_of_const() 



The macro to_subsys_private() needs to switch to using
container_of_const() as it turned out to being incorrectly casting a
const pointer to a non-const one.  Make this change and fix up the one
offending user to be correctly handling a const pointer properly.

Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: default avatarRafael J. Wysocki <rafael@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20230111093327.3955063-1-gregkh@linuxfoundation.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3bb2a01c

drivers/base/base.h

+1 −1
Original line number Diff line number Diff line
@@ -53,7 +53,7 @@ struct subsys_private { 
	struct kset glue_dirs;

	struct class *class;

};

#define to_subsys_private(obj) container_of(obj, struct subsys_private, subsys.kobj)

#define to_subsys_private(obj) container_of_const(obj, struct subsys_private, subsys.kobj)



struct driver_private {

	struct kobject kobj;

drivers/base/class.c

+1 −1
Original line number Diff line number Diff line
@@ -64,7 +64,7 @@ static void class_release(struct kobject *kobj) 


static const struct kobj_ns_type_operations *class_child_ns_type(const struct kobject *kobj)

{

	struct subsys_private *cp = to_subsys_private(kobj);

	const struct subsys_private *cp = to_subsys_private(kobj);

	struct class *class = cp->class;



	return class->ns_type;