ext4: change ext4_read_inline_dir() to return 0 on success
ext4: change ext4_read_inline_dir() to return 0 on success

In ext4_read_inline_dir(), if there is inline data, the successful
return value is the return value of ext4_read_inline_data().  Howewer,
this is used by ext4_readdir(), and while it seems harmless to return
a positive value on success, it's inconsistent, since historically
we've always return 0 on success.

Signed-off-by: BoxiLiu <88ef144e1b0c6cce7f588097e752f237ecf9c0f1@huawei.com>
Signed-off-by: "Theodore Ts'o" <4ed386e0495d3e109932df055831d9ec2f824927@mit.edu>
Acked-by: Tao Ma <85dcca6eaef7f88f8513274f73363a9b5feab3ec@taobao.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs