From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: usb: gadget: f_fs: Only return delayed status when len is 0 From: Felipe Balbi Message-Id: <87wotr7p3j.fsf@linux.intel.com> Date: Thu, 19 Jul 2018 08:48:32 +0300 To: Jerry Zhang , Michal Nazarewicz , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, jerryxzha@gmail.com List-ID: SGksCgpKZXJyeSBaaGFuZyA8emhhbmdqZXJyeUBnb29nbGUuY29tPiB3cml0ZXM6Cj4gQ29tbWl0 IDFiOWJhMDAwICgiQWxsb3cgZnVuY3Rpb24gZHJpdmVycyB0byBwYXVzZSBjb250cm9sCj4gdHJh bnNmZXJzIikgc3RhdGVzIHRoYXQgVVNCX0dBREdFVF9ERUxBWUVEX1NUQVRVUyBpcyBvbmx5Cj4g c3VwcG9ydGVkIGlmIGRhdGEgcGhhc2UgaXMgMCBieXRlcy4KPgo+IEl0IHNlZW1zIHRoYXQgd2hl biB0aGUgbGVuZ3RoIGlzIG5vdCAwIGJ5dGVzLCB0aGVyZSBpcyBubwo+IG5lZWQgdG8gZXhwbGlj aXRseSBkZWxheSB0aGUgZGF0YSBzdGFnZSBzaW5jZSB0aGUgdHJhbnNmZXIKPiBpcyBub3QgY29t cGxldGVkIHVudGlsIHRoZSB1c2VyIHJlc3BvbmRzLiBIb3dldmVyLCB3aGVuIHRoZQo+IGxlbmd0 aCBpcyAwLCB0aGVyZSBpcyBubyBkYXRhIHN0YWdlIGFuZCB0aGUgdHJhbnNmZXIgaXMKPiBmaW5p c2hlZCBvbmNlIHNldHVwKCkgcmV0dXJucywgaGVuY2UgdGhlcmUgaXMgYSBuZWVkIHRvCj4gZXhw bGljaXRseSBkZWxheSBjb21wbGV0aW9uLgo+Cj4gVGhpcyBtYW5pZmVzdHMgYXMgdGhlIGZvbGxv d2luZyBidWdzOgo+Cj4gUHJpb3IgdG8gOTQ2ZWY2OGFkNGU0ICgnTGV0IHNldHVwKCkgcmV0dXJu Cj4gVVNCX0dBREdFVF9ERUxBWUVEX1NUQVRVUycpLCB3aGVuIHNldHVwIGlzIDAgYnl0ZXMsIGZm cwo+IHdvdWxkIHJlcXVpcmUgdXNlciB0byBxdWV1ZSBhIDAgYnl0ZSByZXF1ZXN0IGluIG9yZGVy IHRvCj4gY2xlYXIgc2V0dXAgc3RhdGUuIEhvd2V2ZXIsIHRoYXQgMCBieXRlIHJlcXVlc3Qgd2Fz IGFjdHVhbGx5Cj4gbm90IG5lZWRlZCBhbmQgd291bGQgaGFuZyBhbmQgY2F1c2UgZXJyb3JzIGlu IG90aGVyIHNldHVwCj4gcmVxdWVzdHMuCj4KPiBBZnRlciB0aGUgYWJvdmUgY29tbWl0LCAwIGJ5 dGUgc2V0dXBzIHdvcmsgc2luY2UgdGhlIGdhZGdldAo+IG5vdyBhY2NlcHRzIGVtcHR5IHF1ZXVl cyB0byBlcDAgdG8gY2xlYXIgdGhlIGRlbGF5LCBidXQgYWxsCj4gb3RoZXIgc2V0dXBzIGhhbmcu Cj4KPiBGaXhlczogOTQ2ZWY2OGFkNGU0ICgiTGV0IHNldHVwKCkgcmV0dXJuIFVTQl9HQURHRVRf REVMQVlFRF9TVEFUVVMiKQo+IFNpZ25lZC1vZmYtYnk6IEplcnJ5IFpoYW5nIDx6aGFuZ2plcnJ5 QGdvb2dsZS5jb20+CgpHcmVnLCBjYW4geW91IHBpY2sgdGhpcyBvbmUgbWFudWFsbHk/CgpBY2tl ZC1ieTogRmVsaXBlIEJhbGJpIDxmZWxpcGUuYmFsYmlAbGludXguaW50ZWwuY29tPgo=