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Sat, 13 Feb 2021 09:09:19 -0800 Received: from hasmsx602.ger.corp.intel.com (10.184.107.142) by LCSMSX602.ger.corp.intel.com (10.109.210.11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2106.2; Sat, 13 Feb 2021 19:09:17 +0200 Received: from hasmsx602.ger.corp.intel.com ([10.184.107.142]) by HASMSX602.ger.corp.intel.com ([10.184.107.142]) with mapi id 15.01.2106.002; Sat, 13 Feb 2021 19:09:17 +0200 From: "Winkler, Tomas" To: Richard Weinberger Subject: RE: [PATCH] mtd: use refcount to prevent corruption Thread-Topic: [PATCH] mtd: use refcount to prevent corruption Thread-Index: AQHW9OeD00Da249Jw0qJn6+VIZAeUao7z7AAgAAh5BBxoBSOfPxzntFAEGBJdu//fSiMQP//4NkAAA+XK+AnHY02HSTJqnMg Date: Sat, 13 Feb 2021 17:09:17 +0000 Message-ID: <783a45b0bc04483e9a0a6bb0a083bccb@intel.com> References: <20210127200319.662842-1-tomas.winkler@intel.com> <1776363776.325713.1611782270873.JavaMail.zimbra@nod.at> <1665542284.336646.1611820031174.JavaMail.zimbra@nod.at> <20210128100032.5eb542c6@xps13> <10c2e98c393a486cab3bc953e9926e38@intel.com> <1363048722.339069.1611865409332.JavaMail.zimbra@nod.at> In-Reply-To: <1363048722.339069.1611865409332.JavaMail.zimbra@nod.at> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.5.1.3 x-originating-ip: [10.184.70.1] MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210213_120922_885007_6CF08BCD X-CRM114-Status: GOOD ( 23.83 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel , linux-mtd , Vignesh Raghavendra , Miquel Raynal Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DQo+IA0KPiBUb21hcywNCj4gDQo+IC0tLS0tIFVyc3Byw7xuZ2xpY2hlIE1haWwgLS0tLS0NCj4g Pj4gQXMgUmljaGFyZCB3YXMgc2F5aW5nLCB3ZSBhcmUgcmVhbGx5IG9wZW4gdG8gZW5oYW5jZSBN VEQgcmVmY291bnRpbmcuDQo+ID4+DQo+ID4+IEhvd2V2ZXIsIHRoZSBpc3N1ZSB5b3UgYXJlIGZh Y2luZyBpcywgSU1ITywgbm90IHJlbGF0ZWQgdG8gTVREIGJ1dCB0bw0KPiBNRkQuDQo+ID4+IFRo ZXJlIHNob3VsZCBiZSBhIHdheSB0byBhdm9pZCBNRkQgdG8gdmFuaXNoIGJ5IHRha2luZyBhIHJl ZmVyZW5jZSBvZg0KPiA+PiBpdCB0aHJvdWdoIG10ZC0+X2dldF9kZXZpY2UoKS4gSSBkb24ndCB0 aGluayBhZGRyZXNzaW5nIHRoZSBjYXNlDQo+ID4+IHdoZXJlIE1GRCB2YW5pc2hlcyB3aGlsZSBN VEQgKGFzIGEgdXNlcikgaXMgc3RpbGwgYWN0aXZlIGlzIHRoZSByaWdodA0KPiBhcHByb2FjaC4N Cj4gPg0KPiA+IEkgdGhpbmsgaXQgd29uJ3Qgd29yayBiZWNhdXNlIE1GRCBzdWItZHJpdmVyIHJl bW92ZSgpIGlzIGNhbGxlZCAgIGFuZCBpdA0KPiBtdXN0DQo+ID4gc3VjY2VlZCBiZWNhdXNlIHRo ZSBtYWluIGRldmljZSAgaXMgbm90IGFjY2Vzc2libGUgdW5saWtlIGdsdWV1YmkNCj4gPiB3aGlj aCBqdXN0IHJldHVybnMgLUVCVVNZLg0KPiANCj4gV2VsbCwgdGhlIHRyaWNrIGluIGdsdWJpIChh bmQgb3RoZXIgTVREcyB3aXRoICJob3RwbHVnIiBzdXBwb3J0KSBpcyBub3QgdG8NCj4gcmVqZWN0 IHJlbW92YWwgb2YgdGhlIHN1Yi1kZXZpY2UuIC0+X3B1dF9kZXZpY2UoKSBpcyBvZiByZXR1cm4g dHlwZSB2b2lkLg0KPiBUaGUga2V5IGlzIGdyYWJiaW5nIGEgcmVmZXJlbmNlIG9uIHRoZSBzdWIt ZGV2aWNlIGluIC0+X2dldF9kZXZpY2UoKSBzdWNoDQo+IHRoYXQgdGhlIGxheWVyIGJlbG93IGRv ZXNuJ3QgZXZlbiB0cnkgdG8gcmVtb3ZlIHdoaWxlIHRoZSBNVEQgaXMgaW4gdXNlLg0KDQpJIHVu ZGVyc3RhbmQgdGhhdC4gQnV0IGluIHRoYXQgY2FzZSB0aGUga2VybmVsIGlzIGluIHRoZSBtZXJj eSBvZiB1c2VyIHNwYWNlIHRvIGNsb3NlIHRoZSBoYW5kbGUsICANCnRoZSB3aG9sZSBwZXJjZXB0 aW9uIGhlcmUgaXMgdGhhdCBvZiBob3RwbHVnIHRoYXQgdGhlIGRldmljZSBpcyAgcGh5c2ljYWxs eSByZW1vdmVkIGl0IGNhbm5vdCB3YWl0IA0KZm9yIHRoZSB1c2VyIHNwYWNlIHRvIGNvbXBsZXRl LiBXaGF0J3MgdGhlIGZpeCBpcyB0cnlpbmcgdG8gZG8gaXMgdG8gYmFpbCBvdXQgZ3JhY2VmdWxs eS4NCg0KPiA+IHNvIHdlIHBvc3Rwb25lIHRoZSBtdGQgdW5yZWdpc3RlciB0byAgbXRkX2luZm8t Pl9wdXRfZGV2aWNlKCkgIGJ1dCBpdA0KPiA+IHRoYXQgc3RhdGUgd2UgaGF2ZSBub3RoaW5nIHRv IGhvbGQgb24gYXMgdGhlIGRldmljZSBpcyBnb25lIGluDQo+ID4gcmVtb3ZlKCkgVXNlciB3aWxs IGZhaWwgYW55d2F5LCBhcyB0aGUgdW5kZXJseWluZyBkZXZpY2UgaXMgbm90DQo+ID4gZnVuY3Rp b25hbCBpbiB0aGF0IHN0YXRlLg0KPiA+IEFueXdheSBJJ3ZlIHRyaWVkIHlvdXIgc3VnZ2VzdGlv biwgdGhlIGtlcm5lbCBpcyBjcmFzaGluZywgaG9wZSBJDQo+ID4gaGF2ZW4ndCBkb25lIHNvbWUg c2lsbHkgYnVnLg0KPiANCj4gQ2FuIHlvdSBwb2ludCB1cyB0byB0aGUgYWZmZWN0ZWQgY29kZT8N Cj4gVGhpcyB3b3VsZCBoZWxwIGEgbG90IHRvIHVuZGVyc3RhbmQgdGhlIGlzc3VlIGJldHRlci4N Cj4gSSdtIHN1cmUgd2UgY2FuIGZpbmQgYSBzb2x1dGlvbi4NCg0KR290IGdyZWVuIGxpZ2h0IG9u IHJlbGVhc2luZyB0aGUgcGF0Y2hlcyB3aWxsIHNlbmQgc29vbi4NCg0KDQpUaGFua3MNClRvbWFz DQoNCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpMaW51eCBNVEQgZGlzY3Vzc2lvbiBtYWlsaW5nIGxpc3QKaHR0cDovL2xpc3RzLmluZnJhZGVh ZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1tdGQvCg==