parisc: pdc_stable: Fix memory leak in pdcs_register_pathentries

kobject_init_and_add() takes reference even when it fails.
According to the doc of kobject_init_and_add()：

   If this function returns an error, kobject_put() must be called to
   properly clean up the memory associated with the object.

Fix memory leak by calling kobject_put().

Fixes: 73f368cf679b ("Kobject: change drivers/parisc/pdc_stable.c to use kobject_init_and_add")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 9513c39..d9e5103 100644 (file)
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -980,8 +980,10 @@ pdcs_register_pathentries(void)
                entry->kobj.kset = paths_kset;
                err = kobject_init_and_add(&entry->kobj, &ktype_pdcspath, NULL,
                                           "%s", entry->name);
-               if (err)
+               if (err) {
+                       kobject_put(&entry->kobj);
                        return err;
+               }
 
                /* kobject is now registered */
                write_lock(&entry->rw_lock);