[PATCH 01/11] kset: fix documentation for kset_register()
Yang Yingliang
yangyingliang at huawei.com
Fri Oct 21 13:20:52 AEDT 2022
kset_register() is currently used in some places without calling
kset_put() in error path, because the callers think it should be
kset internal thing to do, but the driver core can not know what
caller doing with that memory at times. The memory could be freed
both in kset_put() and error path of caller, if it is called in
kset_register().
So make the function documentation more explicit about calling
kset_put() in the error path of caller.
Signed-off-by: Yang Yingliang <yangyingliang at huawei.com>
---
lib/kobject.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/lib/kobject.c b/lib/kobject.c
index a0b2dbfcfa23..6da04353d974 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -834,6 +834,9 @@ EXPORT_SYMBOL_GPL(kobj_sysfs_ops);
/**
* kset_register() - Initialize and add a kset.
* @k: kset.
+ *
+ * If this function returns an error, kset_put() must be called to
+ * properly clean up the memory associated with the object.
*/
int kset_register(struct kset *k)
{
--
2.25.1
More information about the Linux-erofs
mailing list