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Mon, 2 May 2022 13:26:46 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id dRnxFhbcb2L1FQAAMHmgww (envelope-from ); Mon, 02 May 2022 13:26:46 +0000 Message-ID: Date: Mon, 2 May 2022 15:26:46 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Subject: Re: [PATCH 1/2] fbdev: Check in file_fb_info() if the fb_info was already been freed Content-Language: en-US To: Javier Martinez Canillas , linux-kernel@vger.kernel.org Cc: linux-fbdev@vger.kernel.org, Xiyu Yang , Helge Deller , Changcheng Deng , dri-devel@lists.freedesktop.org, Maxime Ripard , Zhen Lei , Alex Deucher , Sam Ravnborg References: <20220502130944.363776-1-javierm@redhat.com> <20220502130944.363776-2-javierm@redhat.com> From: Thomas Zimmermann In-Reply-To: <20220502130944.363776-2-javierm@redhat.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------GxDwQo1TEarUTpectLcHvWN4" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------GxDwQo1TEarUTpectLcHvWN4 Content-Type: multipart/mixed; boundary="------------ItrIdni06cTQRrs0VpNguz7k"; protected-headers="v1" From: Thomas Zimmermann To: Javier Martinez Canillas , linux-kernel@vger.kernel.org Cc: linux-fbdev@vger.kernel.org, Xiyu Yang , Helge Deller , Changcheng Deng , dri-devel@lists.freedesktop.org, Maxime Ripard , Zhen Lei , Alex Deucher , Sam Ravnborg Message-ID: Subject: Re: [PATCH 1/2] fbdev: Check in file_fb_info() if the fb_info was already been freed References: <20220502130944.363776-1-javierm@redhat.com> <20220502130944.363776-2-javierm@redhat.com> In-Reply-To: <20220502130944.363776-2-javierm@redhat.com> --------------ItrIdni06cTQRrs0VpNguz7k Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 SGkNCg0KQW0gMDIuMDUuMjIgdW0gMTU6MDkgc2NocmllYiBKYXZpZXIgTWFydGluZXogQ2Fu aWxsYXM6DQo+IElmIHJlYWwgZHJpdmVyIHByb2JlcywgdGhlIGZiZGV2IGNvcmUga2lja3Mg b3V0IGFsbCBkcml2ZXJzIHRoYXQgYXJlIHVzaW5nDQo+IGEgZnJhbWVidWZmZXIgdGhhdCB3 ZXJlIHByb3ZpZGVkIGJ5IHRoZSBzeXN0ZW0gZmlybXdhcmUuIEJ1dCBpdCBjb3VsZCBiZSBh DQo+IHVzZXItc3BhY2UgcHJvY2VzcyBzdGlsbCBoYXMgYSBmaWxlIGRlc2NyaXB0b3IgZm9y IHRoZSBmYmRldiBkZXZpY2Ugbm9kZS4NCj4gDQo+IFRoaXMgY2FuIGxlYWQgdG8gYSBOVUxM IHBvaW50ZXIgZGVyZWZlcmVuY2UsIGlmIHRoZSBmcmFtZWJ1ZmZlciBkZXZpY2UgaXMNCj4g dW5yZWdpc3RlcmVkIGFuZCBhc3NvY2lhdGVkIGRhdGEgZnJlZWQsIGJ1dCBsYXRlciBpbiB0 aGUgLnJlbGVhc2UgY2FsbGJhY2sNCj4gaXMgYXR0ZW1wdGVkIHRvIGFjY2VzcyBpdHMgc3Ry dWN0IGZiX2luZm8uDQo+IA0KPiBUbyBwcmV2ZW50IHRoaXMsIG1ha2UgZmlsZV9mYl9pbmZv KCkgdG8gYWxzbyBjaGVjayB0aGUgZmJfaW5mbyByZWZlcmVuY2UNCj4gY291bnRlciBhbmQg anVzdCByZXR1cm4gTlVMTCBpZiB0aGlzIGVxdWFscyB6ZXJvLiBTaW5jZSB0aGF0IG1lYW5z IGl0IGhhcw0KPiBhbHJlYWR5IGJlZW4gZnJlZWQuDQo+IA0KPiBTaWduZWQtb2ZmLWJ5OiBK YXZpZXIgTWFydGluZXogQ2FuaWxsYXMgPGphdmllcm1AcmVkaGF0LmNvbT4NCj4gLS0tDQo+ IA0KPiAgIGRyaXZlcnMvdmlkZW8vZmJkZXYvY29yZS9mYm1lbS5jIHwgOSArKysrKysrLS0N Cj4gICAxIGZpbGUgY2hhbmdlZCwgNyBpbnNlcnRpb25zKCspLCAyIGRlbGV0aW9ucygtKQ0K PiANCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvdmlkZW8vZmJkZXYvY29yZS9mYm1lbS5jIGIv ZHJpdmVycy92aWRlby9mYmRldi9jb3JlL2ZibWVtLmMNCj4gaW5kZXggODQ0Mjc0NzAzNjdi Li4yMGQ4OTI5ZGY3OWYgMTAwNjQ0DQo+IC0tLSBhL2RyaXZlcnMvdmlkZW8vZmJkZXYvY29y ZS9mYm1lbS5jDQo+ICsrKyBiL2RyaXZlcnMvdmlkZW8vZmJkZXYvY29yZS9mYm1lbS5jDQo+ IEBAIC03NTEsOCArNzUxLDEzIEBAIHN0YXRpYyBzdHJ1Y3QgZmJfaW5mbyAqZmlsZV9mYl9p bmZvKHN0cnVjdCBmaWxlICpmaWxlKQ0KPiAgIAlpbnQgZmJpZHggPSBpbWlub3IoaW5vZGUp Ow0KPiAgIAlzdHJ1Y3QgZmJfaW5mbyAqaW5mbyA9IHJlZ2lzdGVyZWRfZmJbZmJpZHhdOw0K PiAgIA0KPiAtCWlmIChpbmZvICE9IGZpbGUtPnByaXZhdGVfZGF0YSkNCj4gLQkJaW5mbyA9 IE5VTEw7DQo+ICsJaWYgKCFpbmZvKQ0KPiArCQlyZXR1cm4gTlVMTDsNCj4gKw0KPiArCS8q IGNoZWNrIHRoYXQgdGhlIGZiX2luZm8gaGFzIG5vdCBjaGFuZ2VkIG9yIHdhcyBhbHJlYWR5 IGZyZWVkICovDQo+ICsJaWYgKGluZm8gIT0gZmlsZS0+cHJpdmF0ZV9kYXRhIHx8IHJlZmNv dW50X3JlYWQoJmluZm8tPmNvdW50KSA9PSAwKQ0KPiArCQlyZXR1cm4gTlVMTDsNCj4gKw0K DQpBY2tlZC1ieTogVGhvbWFzIFppbW1lcm1hbm4gPHR6aW1tZXJtYW5uQHN1c2UuZGU+DQoN Ckhvd2V2ZXIsIEknbSBoYXZpbmcgcHJvYmxlbXMgd2l0aCB0aGUgc2VtYW50aWNzIG9mIHRo ZXNlIHZhcmlhYmxlczogaWYgDQp3ZSBoYXZlIGFuIGluZm8gZnJvbSByZWdpc3RlcmVkX2Zi W2ZiaW54XSBhbmQgdGhlIHJlZmNvdW50IGluIA0KaW5mby0+Y291bnQgaXMgc3RpbGwgMCwg aXNuJ3QgdGhhdCBhIGNvbnNpc3RlbmN5IHByb2JsZW0/IElmIHNvLCB3ZSANCnNob3VsZCBw cmludCBhIFdBUk5fT04oKS4NCg0KQmVzdCByZWdhcmRzDQpUaG9tYXMNCg0KDQo+ICAgCXJl dHVybiBpbmZvOw0KPiAgIH0NCj4gICANCg0KLS0gDQpUaG9tYXMgWmltbWVybWFubg0KR3Jh cGhpY3MgRHJpdmVyIERldmVsb3Blcg0KU1VTRSBTb2Z0d2FyZSBTb2x1dGlvbnMgR2VybWFu eSBHbWJIDQpNYXhmZWxkc3RyLiA1LCA5MDQwOSBOw7xybmJlcmcsIEdlcm1hbnkNCihIUkIg MzY4MDksIEFHIE7DvHJuYmVyZykNCkdlc2Now6RmdHNmw7xocmVyOiBJdm8gVG90ZXYNCg== --------------ItrIdni06cTQRrs0VpNguz7k-- --------------GxDwQo1TEarUTpectLcHvWN4 Content-Type: application/pgp-signature; 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