From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-bl2on0081.outbound.protection.outlook.com ([65.55.169.81]:12128 "EHLO na01-bl2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751204AbbK0DQH (ORCPT ); Thu, 26 Nov 2015 22:16:07 -0500 From: "Xue, Ken" To: "linux-kernel@vger.kernel.org" , "mlin@kernel.org" , "stern@rowland.harvard.edu" CC: "linux-scsi@vger.kernel.org" , "Huang, Shane" , SPG_Linux_Kernel , "aaron.lu@intel.com" , "stable@vger.kernel.org" , "JBottomley@Odin.com" , "Yu, Xiangliang" Subject: Re: [PATCH 1/2]Revert "SCSI: Fix NULL pointer dereference in runtime PM" Date: Fri, 27 Nov 2015 03:01:42 +0000 Message-ID: <1448593294.3216.11.camel@amd.com> References: <1441782131.5845.73.camel@kxue-X58A-UD3R> <1441851826.5845.105.camel@kxue-X58A-UD3R> In-Reply-To: <1441851826.5845.105.camel@kxue-X58A-UD3R> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <029AFC1A769E5C49A22524F5EDBF8032@namprd12.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org List-ID: T24g5ZubLCAyMDE1LTA5LTEwIGF0IDEwOjIzICswODAwLCBLZW4gWHVlIHdyb3RlOg0KDQpDYW4g c29tZW9uZSBoZWxwIHRvIGFwcGx5IHRoaXMgcGF0Y2ggc2VyaWVzPyBUaGFua3MuDQpodHRwOi8v bWFyYy5pbmZvLz9sPWxpbnV4LXNjc2kmbT0xNDQxODUyMDY4MjU2MDkmdz0yDQpodHRwOi8vbWFy Yy5pbmZvLz9sPWxpbnV4LXNjc2kmbT0xNDQxODUyMDg1MjU2MTEmdz0yIA0KDQo+IFJldmVydCAi U0NTSTogRml4IE5VTEwgcG9pbnRlciBkZXJlZmVyZW5jZSBpbiBydW50aW1lIFBNIg0KPiANCj4g VGhpcyByZXZlcnRzIGNvbW1pdCA0OTcxOGYwZmI4YzkgKCJTQ1NJOiBGaXggTlVMTCBwb2ludGVy IGRlcmVmZXJlbmNlDQo+IGluDQo+IHJ1bnRpbWUgUE0iKQ0KPiANCj4gVGhlIG9sZCBjb21taXQg bWF5IGxlYWQgdG8gYSBpc3N1ZSB0aGF0DQo+IGJsa197cHJlfHBvc3R9X3J1bnRpbWVfc3VzcGVu ZCBhbmQNCj4gYmxrX3twcmV8cG9zdH1fcnVudGltZV9yZXN1bWUgY2FuIG5vdCBiZSBjYWxsZWQg aW4gcGFpcnMuDQo+IA0KPiBUYWtlIHNyIGRldmljZSBhcyBleGFtcGxlLCB3aGVuIHNyIGRldmlj ZSBnb2VzIHRvIHJ1bnRpbWUgc3VzcGVuZCwgDQo+IGJsa197cHJlfHBvc3R9X3J1bnRpbWVfc3Vz cGVuZCB3aWxsIGJlIGNhbGxlZCBzaW5jZSBzciBkZXZpY2UgZGVmaW5lZA0KPiBwbS0+cnVudGlt ZV9zdXNwZW5kLiBCdXQgYmxrX3twcmV8cG9zdH1fcnVudGltZV9yZXN1bWUgd2lsbCBub3QgYmUN Cj4gY2FsbGVkDQo+IHNpbmNlIHNyIGRldmljZSBkb2Vzbid0IGhhdmUgcG0tPnJ1bnRpbWVfcmVz dW1lLiBUaGVuIHNyIGRldmljZSBjYW4NCj4gbm90DQo+IHJlc3VtZSBjb3JyZWN0bHkgYW55bW9y ZS4NCj4gDQo+IFNpZ25lZC1vZmYtYnk6IEtlbiBYdWUgPEtlbi5YdWVAYW1kLmNvbT4NCj4gQWNr ZWQtYnk6IEFsYW4gU3Rlcm4gPHN0ZXJuQHJvd2xhbmQuaGFydmFyZC5lZHU+DQo+IENjOiBzdGFi bGVAdmdlci5rZXJuZWwub3JnDQo+IA0KPiAtLS0NCj4gIGRyaXZlcnMvc2NzaS9zY3NpX3BtLmMg fCAyMCArKysrKysrKysrLS0tLS0tLS0tLQ0KPiAgMSBmaWxlIGNoYW5nZWQsIDEwIGluc2VydGlv bnMoKyksIDEwIGRlbGV0aW9ucygtKQ0KPiANCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvc2NzaS9z Y3NpX3BtLmMgYi9kcml2ZXJzL3Njc2kvc2NzaV9wbS5jDQo+IGluZGV4IGU0Yjc5OTguLjQ1OWFi ZTEgMTAwNjQ0DQo+IC0tLSBhL2RyaXZlcnMvc2NzaS9zY3NpX3BtLmMNCj4gKysrIGIvZHJpdmVy cy9zY3NpL3Njc2lfcG0uYw0KPiBAQCAtMjE5LDEzICsyMTksMTMgQEAgc3RhdGljIGludCBzZGV2 X3J1bnRpbWVfc3VzcGVuZChzdHJ1Y3QgZGV2aWNlDQo+ICpkZXYpDQo+ICAJc3RydWN0IHNjc2lf ZGV2aWNlICpzZGV2ID0gdG9fc2NzaV9kZXZpY2UoZGV2KTsNCj4gIAlpbnQgZXJyID0gMDsNCj4g IA0KPiAtCWlmIChwbSAmJiBwbS0+cnVudGltZV9zdXNwZW5kKSB7DQo+IC0JCWVyciA9IGJsa19w cmVfcnVudGltZV9zdXNwZW5kKHNkZXYtPnJlcXVlc3RfcXVldWUpOw0KPiAtCQlpZiAoZXJyKQ0K PiAtCQkJcmV0dXJuIGVycjsNCj4gKwllcnIgPSBibGtfcHJlX3J1bnRpbWVfc3VzcGVuZChzZGV2 LT5yZXF1ZXN0X3F1ZXVlKTsNCj4gKwlpZiAoZXJyKQ0KPiArCQlyZXR1cm4gZXJyOw0KPiArCWlm IChwbSAmJiBwbS0+cnVudGltZV9zdXNwZW5kKQ0KPiAgCQllcnIgPSBwbS0+cnVudGltZV9zdXNw ZW5kKGRldik7DQo+IC0JCWJsa19wb3N0X3J1bnRpbWVfc3VzcGVuZChzZGV2LT5yZXF1ZXN0X3F1 ZXVlLCBlcnIpOw0KPiAtCX0NCj4gKwlibGtfcG9zdF9ydW50aW1lX3N1c3BlbmQoc2Rldi0+cmVx dWVzdF9xdWV1ZSwgZXJyKTsNCj4gKw0KPiAgCXJldHVybiBlcnI7DQo+ICB9DQo+ICANCj4gQEAg LTI0OCwxMSArMjQ4LDExIEBAIHN0YXRpYyBpbnQgc2Rldl9ydW50aW1lX3Jlc3VtZShzdHJ1Y3Qg ZGV2aWNlDQo+ICpkZXYpDQo+ICAJY29uc3Qgc3RydWN0IGRldl9wbV9vcHMgKnBtID0gZGV2LT5k cml2ZXIgPyBkZXYtPmRyaXZlci0+cG0NCj4gOiBOVUxMOw0KPiAgCWludCBlcnIgPSAwOw0KPiAg DQo+IC0JaWYgKHBtICYmIHBtLT5ydW50aW1lX3Jlc3VtZSkgew0KPiAtCQlibGtfcHJlX3J1bnRp bWVfcmVzdW1lKHNkZXYtPnJlcXVlc3RfcXVldWUpOw0KPiArCWJsa19wcmVfcnVudGltZV9yZXN1 bWUoc2Rldi0+cmVxdWVzdF9xdWV1ZSk7DQo+ICsJaWYgKHBtICYmIHBtLT5ydW50aW1lX3Jlc3Vt ZSkNCj4gIAkJZXJyID0gcG0tPnJ1bnRpbWVfcmVzdW1lKGRldik7DQo+IC0JCWJsa19wb3N0X3J1 bnRpbWVfcmVzdW1lKHNkZXYtPnJlcXVlc3RfcXVldWUsIGVycik7DQo+IC0JfQ0KPiArCWJsa19w b3N0X3J1bnRpbWVfcmVzdW1lKHNkZXYtPnJlcXVlc3RfcXVldWUsIGVycik7DQo+ICsNCj4gIAly ZXR1cm4gZXJyOw0KPiAgfQ0KPiAg