When handling errors through ioctl, the error returned by the server is always 0 on the client, because cookie.result is not assigned, the error returned should be in msg->result Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
When handling errors through ioctl, the error returned by the server is always 0 on the client, because cookie.result is not assigned, the error returned should be in msg->result Signed-off-by: chenrun1 <chenrun1@xiaomi.com>