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: Greg Kroah-Hartman Message-Id: <20180720135704.GA460@kroah.com> Date: Fri, 20 Jul 2018 15:57:04 +0200 To: Felipe Balbi Cc: Jerry Zhang , Michal Nazarewicz , linux-usb@vger.kernel.org, jerryxzha@gmail.com List-ID: T24gVGh1LCBKdWwgMTksIDIwMTggYXQgMDg6NDg6MzJBTSArMDMwMCwgRmVsaXBlIEJhbGJpIHdy b3RlOgo+IAo+IEhpLAo+IAo+IEplcnJ5IFpoYW5nIDx6aGFuZ2plcnJ5QGdvb2dsZS5jb20+IHdy aXRlczoKPiA+IENvbW1pdCAxYjliYTAwMCAoIkFsbG93IGZ1bmN0aW9uIGRyaXZlcnMgdG8gcGF1 c2UgY29udHJvbAo+ID4gdHJhbnNmZXJzIikgc3RhdGVzIHRoYXQgVVNCX0dBREdFVF9ERUxBWUVE X1NUQVRVUyBpcyBvbmx5Cj4gPiBzdXBwb3J0ZWQgaWYgZGF0YSBwaGFzZSBpcyAwIGJ5dGVzLgo+ ID4KPiA+IEl0IHNlZW1zIHRoYXQgd2hlbiB0aGUgbGVuZ3RoIGlzIG5vdCAwIGJ5dGVzLCB0aGVy ZSBpcyBubwo+ID4gbmVlZCB0byBleHBsaWNpdGx5IGRlbGF5IHRoZSBkYXRhIHN0YWdlIHNpbmNl IHRoZSB0cmFuc2Zlcgo+ID4gaXMgbm90IGNvbXBsZXRlZCB1bnRpbCB0aGUgdXNlciByZXNwb25k cy4gSG93ZXZlciwgd2hlbiB0aGUKPiA+IGxlbmd0aCBpcyAwLCB0aGVyZSBpcyBubyBkYXRhIHN0 YWdlIGFuZCB0aGUgdHJhbnNmZXIgaXMKPiA+IGZpbmlzaGVkIG9uY2Ugc2V0dXAoKSByZXR1cm5z LCBoZW5jZSB0aGVyZSBpcyBhIG5lZWQgdG8KPiA+IGV4cGxpY2l0bHkgZGVsYXkgY29tcGxldGlv bi4KPiA+Cj4gPiBUaGlzIG1hbmlmZXN0cyBhcyB0aGUgZm9sbG93aW5nIGJ1Z3M6Cj4gPgo+ID4g UHJpb3IgdG8gOTQ2ZWY2OGFkNGU0ICgnTGV0IHNldHVwKCkgcmV0dXJuCj4gPiBVU0JfR0FER0VU X0RFTEFZRURfU1RBVFVTJyksIHdoZW4gc2V0dXAgaXMgMCBieXRlcywgZmZzCj4gPiB3b3VsZCBy ZXF1aXJlIHVzZXIgdG8gcXVldWUgYSAwIGJ5dGUgcmVxdWVzdCBpbiBvcmRlciB0bwo+ID4gY2xl YXIgc2V0dXAgc3RhdGUuIEhvd2V2ZXIsIHRoYXQgMCBieXRlIHJlcXVlc3Qgd2FzIGFjdHVhbGx5 Cj4gPiBub3QgbmVlZGVkIGFuZCB3b3VsZCBoYW5nIGFuZCBjYXVzZSBlcnJvcnMgaW4gb3RoZXIg c2V0dXAKPiA+IHJlcXVlc3RzLgo+ID4KPiA+IEFmdGVyIHRoZSBhYm92ZSBjb21taXQsIDAgYnl0 ZSBzZXR1cHMgd29yayBzaW5jZSB0aGUgZ2FkZ2V0Cj4gPiBub3cgYWNjZXB0cyBlbXB0eSBxdWV1 ZXMgdG8gZXAwIHRvIGNsZWFyIHRoZSBkZWxheSwgYnV0IGFsbAo+ID4gb3RoZXIgc2V0dXBzIGhh bmcuCj4gPgo+ID4gRml4ZXM6IDk0NmVmNjhhZDRlNCAoIkxldCBzZXR1cCgpIHJldHVybiBVU0Jf R0FER0VUX0RFTEFZRURfU1RBVFVTIikKPiA+IFNpZ25lZC1vZmYtYnk6IEplcnJ5IFpoYW5nIDx6 aGFuZ2plcnJ5QGdvb2dsZS5jb20+Cj4gCj4gR3JlZywgY2FuIHlvdSBwaWNrIHRoaXMgb25lIG1h bnVhbGx5Pwo+IAo+IEFja2VkLWJ5OiBGZWxpcGUgQmFsYmkgPGZlbGlwZS5iYWxiaUBsaW51eC5p bnRlbC5jb20+CgpZZXMsIEknbGwgcGljayBpdCB1cCwgdGhhbmtzLgoKZ3JlZyBrLWgKLS0tClRv IHVuc3Vic2NyaWJlIGZyb20gdGhpcyBsaXN0OiBzZW5kIHRoZSBsaW5lICJ1bnN1YnNjcmliZSBs aW51eC11c2IiIGluCnRoZSBib2R5IG9mIGEgbWVzc2FnZSB0byBtYWpvcmRvbW9Admdlci5rZXJu ZWwub3JnCk1vcmUgbWFqb3Jkb21vIGluZm8gYXQgIGh0dHA6Ly92Z2VyLmtlcm5lbC5vcmcvbWFq b3Jkb21vLWluZm8uaHRtbAo=