configfs: call drop_link() to cleanup after create_link() failure
When allow_link() succeeds but create_link() fails, the subsystem is not
informed of the failure.
This patch fixes this by calling drop_link() on create_link() failures.
Signed-off-by: Louis Rilling <Louis.Rilling@kerlabs.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index faeb441..0004d18 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -140,8 +140,12 @@
goto out_put;
ret = type->ct_item_ops->allow_link(parent_item, target_item);
- if (!ret)
+ if (!ret) {
ret = create_link(parent_item, target_item, dentry);
+ if (ret && type->ct_item_ops->drop_link)
+ type->ct_item_ops->drop_link(parent_item,
+ target_item);
+ }
config_item_put(target_item);
path_put(&nd.path);