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: configfs: Disallow empty function instance name From: Felipe Balbi Message-Id: <878te7nfg7.fsf@linux.intel.com> Date: Wed, 13 Dec 2017 11:29:44 +0200 To: Alan Stern Cc: Krzysztof Opasiak , gregkh@linuxfoundation.org, andrzej.p@samsung.com, linux-usb@vger.kernel.org List-ID: SGksCgpBbGFuIFN0ZXJuIDxzdGVybkByb3dsYW5kLmhhcnZhcmQuZWR1PiB3cml0ZXM6Cj4+IEty enlzenRvZiBPcGFzaWFrIDxrLm9wYXNpYWtAc2Ftc3VuZy5jb20+IHdyaXRlczoKPj4gPiBPbiAx Mi8xMi8yMDE3IDAxOjMxIFBNLCBGZWxpcGUgQmFsYmkgd3JvdGU6Cj4+ID4+IAo+PiA+PiBIaSwK Pj4gPj4gCj4+ID4+IEtyenlzenRvZiBPcGFzaWFrIDxrLm9wYXNpYWtAc2Ftc3VuZy5jb20+IHdy aXRlczoKPj4gPj4+IEV2ZXJ5IGZ1bmN0aW9uIHNob3VsZCBoYXZlIGEgdHlwZSBhbmQgaW5zdGFu Y2UgbmFtZS4KPj4gPj4+IFVuZm9ydHVuYXRlbHkgaW4gbW9zdCBjYXNlcyBpbnN0YW5jZSBuYW1l IHdhcyBsZWZ0IHVudXNlZCBhbmQgdW5jaGVja2VkLgo+PiA+Pj4gVGhpcyBtYXkgbGVhZCB0byBz aXR1YXRpb25zIGxpa2UgRnVuY3Rpb25GUyBkZXZpY2UgbmFtZSBpZGVudGlmaWVkIGJ5ICIiCj4+ ID4+PiBvciBzb21lIG1pc2xlYWRpbmcgZGVidWcgbWVzc2FnZXMgZnJvbSBUQ00gbGlrZToKPj4g Pj4+Cj4+ID4+PiB0Y206IEFjdGl2YXRpbmcKPj4gPj4+Cj4+ID4+PiBUbyBhdm9pZCB0aGlzIGxl dCdzIGFkZCBhIGNoZWNrIHRoYXQgaW5zdGFuY2UgbmFtZSBzaG91bGQgaGF2ZSBhdCBsZWFzdAo+ PiA+Pj4gb25lIGNoYXJhY3Rlci4KPj4gPj4+Cj4+ID4+PiBSZXBvcnRlZC1ieTogU3RlZmFuIEFn bmVyIDxzdGVmYW5AYWduZXIuY2g+Cj4+ID4+PiBTaWduZWQtb2ZmLWJ5OiBLcnp5c3p0b2YgT3Bh c2lhayA8ay5vcGFzaWFrQHNhbXN1bmcuY29tPgo+PiA+Pj4gLS0tCj4+ID4+PiAgIGRyaXZlcnMv dXNiL2dhZGdldC9jb25maWdmcy5jIHwgNSArKysrKwo+PiA+Pj4gICAxIGZpbGUgY2hhbmdlZCwg NSBpbnNlcnRpb25zKCspCj4+ID4+Pgo+PiA+Pj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvdXNiL2dh ZGdldC9jb25maWdmcy5jIGIvZHJpdmVycy91c2IvZ2FkZ2V0L2NvbmZpZ2ZzLmMKPj4gPj4+IGlu ZGV4IGFlYjlmM2M0MDUyMS4uYmRjOWVjNTk3ZDZhIDEwMDY0NAo+PiA+Pj4gLS0tIGEvZHJpdmVy cy91c2IvZ2FkZ2V0L2NvbmZpZ2ZzLmMKPj4gPj4+ICsrKyBiL2RyaXZlcnMvdXNiL2dhZGdldC9j b25maWdmcy5jCj4+ID4+PiBAQCAtNTQ4LDYgKzU0OCwxMSBAQCBzdGF0aWMgc3RydWN0IGNvbmZp Z19ncm91cCAqZnVuY3Rpb25fbWFrZSgKPj4gPj4+ICAgCSppbnN0YW5jZV9uYW1lID0gJ1wwJzsK Pj4gPj4+ICAgCWluc3RhbmNlX25hbWUrKzsKPj4gPj4+ICAgCj4+ID4+PiArCWlmICgqaW5zdGFu Y2VfbmFtZSA9PSAnXDAnKSB7Cj4+ID4+PiArCQlwcl9lcnIoIkluc3RhbmNlIG5hbWUgKGFmdGVy IC4pIHNob3VsZCBub3QgYmUgZW1wdHlcbiIpOwo+PiA+Pj4gKwkJcmV0dXJuIEVSUl9QVFIoLUVJ TlZBTCk7Cj4+ID4+PiArCX0KPj4gPj4gCj4+ID4+IGFhYWFhYW5kIGp1c3QgbGlrZSB0aGF0IHlv dSBicmVhayBwb3RlbnRpYWxseSBleGlzdGluZyBzY3JpcHRzIDotKQo+PiA+PiAKPj4gPj4gV2Ug bmVlZCB0byBmaW5kIGEgYmV0dGVyIHdheSBvZiBlbmZvcmNpbmcgYSBuYW1lIHdoaWNoIGRvZXNu J3QgYnJlYWsKPj4gPj4gZXhpc3RpbmcgdXNlcnMuCj4+ID4KPj4gPiBJJ20gcmVhbGx5IG9wZW4g Zm9yIHN1Z2dlc3Rpb25zIGhvdyB0byBlbmZvcmNlIHRoaXMgd2l0aG91dCBicmVha2luZyAKPj4g PiB0aG9zZSBzY3JpcHRzIDspCj4+ID4KPj4gPiBUaGUgb3JpZ2luIG9mIHRoaXMgY29tbWl0IGlz IGdpdGh1YiBpc3N1ZSBmb3IgbGlidXNiZ3hbMV0uCj4+ID4gU28gdGhlIHByb2JsZW0gaXMgdGhh dCBsaWJyYXJ5IGFsbG93cyB0byBjcmVhdGUgYSBmdW5jdGlvbiB3aXRoIGVtcHR5IAo+PiA+IG5h bWUgKGJlY2F1c2UgSSBtaXN0YWtlbmx5IGFzc3VtZWQgdGhhdCBrZXJuZWwgcmVqZWN0cyB0aGlz KSBidXQgdGhlbiBpdCAKPj4gPiBpcyB1bmFibGUgdG8gcmVpbml0aWFsaXplIHRoZSBDb25maWdG UyBzdGF0ZSBiZWNhdXNlIHRoZXJlIGlzIGEgY2hlY2sgCj4+ID4gdGhhdCBkaXNhbGxvd3MgdGhp cy4gRnJvbSBteSBwb2ludCBvZiB2aWV3IEknZCBiZSBoYXBweSB0byBkaXNhbGxvdyAKPj4gPiBl bXB0eSBuYW1lcyBiZWNhdXNlIGl0IGNhdXNlcyBzb21lIHByb2JsZW1zIChmX2ZzKSBvciB3ZWly ZCBkZWJ1ZyAKPj4gPiBtZXNzYWdlcyAoZl90Y20pIHNvIGlzIGdlbmVyYWxseSBpbmNvbnZlbmll bnQgYW5kIHNlZW1zIHRvIGJlIAo+PiA+IHVuaW50ZW50aW9uYWwuIEJ1dCBJIHdvdWxkIGxpa2Ug dG8ga2VlcCB0aGlzIGNvbnNpc3RlbnQgd2l0aCBrZXJuZWwgcG9saWN5Lgo+PiAKPj4gSSB0aGlu ayB3ZSBuZWVkIHRvIGZpcnN0IGZpeCBsaWJ1c2JneCB0byBwcmV2ZW50IGVtcHR5IG5hbWVzLgo+ PiAKPj4gSSBkb24ndCB3YW50IHRvIGJlIHRoZSBvbmUgaGVhcmluZyBmcm9tIExpbnVzIHRoYXQg IndlIGRvbid0IGJyZWFrCj4+IHVzZXJzcGFjZSIuIEl0J3MgY2xlYXIgdGhhdCBlbXB0eSBuYW1l cyBzaG91bGRuJ3QgYmUgYWxsb3dlZCwgYnV0IHRoZXkKPj4gX2FyZV8gYWxsb3dlZCBhcyBvZiB0 b2RheSwgc28gaG93IGNhbiB3ZSBjYXVzZSBhIHJlZ3Jlc3Npb24gYWxsIG9mIGEKPj4gc3VkZGVu Pwo+PiAKPj4gQWxhbiwgR3JlZywgYW55IHN1Z2dlc3Rpb25zPwo+Cj4gWW91IGNvdWxkIGRvIHNv bWUgc2lsbHkgbmFtZSBtdW5naW5nLCBsaWtlIGNoYW5naW5nIGFuIGVtcHR5IG5hbWUgdG8KPiAi ICIgd2hlbmV2ZXIgeW91IGVuY291bnRlciBpdC4gIE9yIGFkZGluZyBhbiAnXycgdG8gdGhlIGVu ZCBvZiBhbnkgbmFtZQo+IHRoYXQgY29uc2lzdHMgb2Ygbm90aGluZyBidXQgJ18nIGNoYXJhY3Rl cnMuCgpIbW0sIHRoYXQgY291bGQgYmUgZG9uZS4gU28gZXZlcnl0aW1lIHVzZXJzcGFjZSBnaXZl cyB1cyBhbiBlbXB0eSBuYW1lLAp3ZSB3b3VsZCBjb252ZXJ0IHRvICdfJy4gVGhhdCBzdGlsbCBk b2Vzbid0IHNvbHZlIHRoZSBwcm9ibGVtcyBvZgptb3VudGluZyBmdW5jdGlvbmZzLCB0aG91Z2gu IEJ1dCBJIGd1ZXNzIHRoZXJlJ3Mgbm90aGluZyB0aGF0IGNhbiBiZQpkb25lIGluIHRoYXQgY2Fz ZS4K