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: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20230111093327.3955063-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2023-01-11 10:33:27 +01:00
parent 3bb2a01caa
commit 7bbb89b420
2 changed files with 2 additions and 2 deletions

View file

@ -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;

View file

@ -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;