From: Ye Bin yebin10@huawei.com
commit 9a5523f72bd2b0d66eef3d58810c6eb7b5ffc143 upstream.
As 'kobject_add' may allocated memory for 'kobject->name' when return error. And in this function, if call 'kobject_add' failed didn't free kobject. So call 'kobject_put' to recycling resources.
Signed-off-by: Ye Bin yebin10@huawei.com Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20221110144539.2989354-1-yebin@huaweicloud.com Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/hda/hdac_sysfs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/sound/hda/hdac_sysfs.c +++ b/sound/hda/hdac_sysfs.c @@ -346,8 +346,10 @@ static int add_widget_node(struct kobjec return -ENOMEM; kobject_init(kobj, &widget_ktype); err = kobject_add(kobj, parent, "%02x", nid); - if (err < 0) + if (err < 0) { + kobject_put(kobj); return err; + } err = sysfs_create_group(kobj, group); if (err < 0) { kobject_put(kobj);