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Thu, 19 Dec 2019 10:01:20 +0100 Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-eu.st.com (STMicroelectronics) with ESMTP id E74BC10002A; Thu, 19 Dec 2019 10:01:17 +0100 (CET) Received: from Webmail-eu.st.com (sfhdag5node2.st.com [10.75.127.14]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id DAD602A7C94; Thu, 19 Dec 2019 10:01:17 +0100 (CET) Received: from SFHDAG5NODE3.st.com (10.75.127.15) by SFHDAG5NODE2.st.com (10.75.127.14) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Thu, 19 Dec 2019 10:01:17 +0100 Received: from SFHDAG5NODE3.st.com ([fe80::7c09:5d6b:d2c7:5f47]) by SFHDAG5NODE3.st.com ([fe80::7c09:5d6b:d2c7:5f47%20]) with mapi id 15.00.1473.003; Thu, 19 Dec 2019 10:01:17 +0100 From: Fabien DESSENNE To: Jia-Ju Bai , "mchehab@kernel.org" CC: "linux-media@vger.kernel.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] media: sti: bdisp: fix a possible sleep-in-atomic-context bug in bdisp_device_run() Thread-Topic: [PATCH] media: sti: bdisp: fix a possible sleep-in-atomic-context bug in bdisp_device_run() Thread-Index: AQHVtaxEax7uyZMMgkib5/WTY24ilKfBGaKA Date: Thu, 19 Dec 2019 09:01:17 +0000 Message-ID: <705a5381-4edd-211e-9602-78a2b4b67ea9@st.com> References: <20191218140537.12193-1-baijiaju1990@gmail.com> In-Reply-To: <20191218140537.12193-1-baijiaju1990@gmail.com> Accept-Language: fr-FR, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 x-ms-exchange-messagesentrepresentingtype: 1 x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.75.127.44] Content-Type: text/plain; charset="utf-8" Content-ID: Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-12-18_08:2019-12-17,2019-12-18 signatures=0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org SGkgSmlhX0p1LA0KDQoNClRoaXMgaXMgYSBnb29kIGZpbmRpbmcuIFNlZSBteSByZW1hcmtzIGJl bG93Lg0KDQoNCk9uIDE4LzEyLzIwMTkgMzowNSBQTSwgSmlhLUp1IEJhaSB3cm90ZToNCj4gVGhl IGRyaXZlciBtYXkgc2xlZXAgd2hpbGUgaG9sZGluZyBhIHNwaW5sb2NrLg0KPiBUaGUgZnVuY3Rp b24gY2FsbCBwYXRoIChmcm9tIGJvdHRvbSB0byB0b3ApIGluIExpbnV4IDQuMTkgaXM6DQo+DQo+ IGRyaXZlcnMvbWVkaWEvcGxhdGZvcm0vc3RpL2JkaXNwL2JkaXNwLWh3LmMsIDM4NToNCj4gCW1z bGVlcCBpbiBiZGlzcF9od19yZXNldA0KPiBkcml2ZXJzL21lZGlhL3BsYXRmb3JtL3N0aS9iZGlz cC9iZGlzcC12NGwyLmMsIDM0MToNCj4gCWJkaXNwX2h3X3Jlc2V0IGluIGJkaXNwX2RldmljZV9y dW4NCj4gZHJpdmVycy9tZWRpYS9wbGF0Zm9ybS9zdGkvYmRpc3AvYmRpc3AtdjRsMi5jLCAzMTc6 DQo+IAlfcmF3X3NwaW5fbG9ja19pcnFzYXZlIGluIGJkaXNwX2RldmljZV9ydW4NCj4NCj4gVG8g Zml4IHRoaXMgYnVnLCBtc2xlZXAoKSBpcyByZXBsYWNlZCB3aXRoIG1kZWxheSgpLg0KPg0KPiBU aGlzIGJ1ZyBpcyBmb3VuZCBieSBhIHN0YXRpYyBhbmFseXNpcyB0b29sIFNUQ2hlY2sgd3JpdHRl biBieSBteXNlbGYuDQo+DQo+IFNpZ25lZC1vZmYtYnk6IEppYS1KdSBCYWkgPGJhaWppYWp1MTk5 MEBnbWFpbC5jb20+DQo+IC0tLQ0KPiAgIGRyaXZlcnMvbWVkaWEvcGxhdGZvcm0vc3RpL2JkaXNw L2JkaXNwLWh3LmMgfCAyICstDQo+ICAgMSBmaWxlIGNoYW5nZWQsIDEgaW5zZXJ0aW9uKCspLCAx IGRlbGV0aW9uKC0pDQo+DQo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL21lZGlhL3BsYXRmb3JtL3N0 aS9iZGlzcC9iZGlzcC1ody5jIGIvZHJpdmVycy9tZWRpYS9wbGF0Zm9ybS9zdGkvYmRpc3AvYmRp c3AtaHcuYw0KPiBpbmRleCA0MzcyYWJiYjU5NTAuLjFhNTYzNDg4MDVhMiAxMDA2NDQNCj4gLS0t IGEvZHJpdmVycy9tZWRpYS9wbGF0Zm9ybS9zdGkvYmRpc3AvYmRpc3AtaHcuYw0KPiArKysgYi9k cml2ZXJzL21lZGlhL3BsYXRmb3JtL3N0aS9iZGlzcC9iZGlzcC1ody5jDQo+IEBAIC0zODIsNyAr MzgyLDcgQEAgaW50IGJkaXNwX2h3X3Jlc2V0KHN0cnVjdCBiZGlzcF9kZXYgKmJkaXNwKQ0KPiAg IAlmb3IgKGkgPSAwOyBpIDwgUE9MTF9SU1RfTUFYOyBpKyspIHsNCj4gICAJCWlmIChyZWFkbChi ZGlzcC0+cmVncyArIEJMVF9TVEExKSAmIEJMVF9TVEExX0lETEUpDQo+ICAgCQkJYnJlYWs7DQo+ IC0JCW1zbGVlcChQT0xMX1JTVF9ERUxBWV9NUyk7DQo+ICsJCW1kZWxheShQT0xMX1JTVF9ERUxB WV9NUyk7DQoNCkluIGdlbmVyYWwsIHVzZSBvZiBtZGVsYXkgaXMgZGlzY291cmFnZWQuIEhlcmUg d2UgY2FuIHVzZSB1ZGVsYXkgaW5zdGVhZCANCm9mLCB3aXRoIGEgbWF4IHZhbHVlIG9mIE1BWF9V REVMQVlfTVMgd2hpY2ggaXMgMiBvbiBBUk0uDQoNClNvLCBpbnN0ZWFkIG9mIHJ1bm5pbmcgNTAg KFBPTExfUlNUX01BWCkgdGltZXMgYSAyMG1zIA0KKFBPTExfUlNUX0RFTEFZX01TKSBkZWxheSwg d2UgY2FuIHJ1biA1MDAgdGltZXMgYSAybXMgKDIwMDB1cykgZGVsYXkuDQoNClRoZSBmb2xsb3dp bmcgY2hhbmdlcyBzaGFsbCBiZSBmaW5lOg0KDQogwqDCoMKgIFBPTExfUlNUX01BWCA1MCAtLT4g NTAwDQoNCiDCoMKgwqAgUE9MTF9SU1RfREVMQVlfTVPCoCAyMCAtLT4gMg0KDQogwqDCoMKgIG1k ZWxheShQT0xMX1JTVF9ERUxBWV9NUykgLS0+IHVkZWxheShQT0xMX1JTVF9ERUxBWV9NUyAqIDEw MDApDQoNCg0KQlINCg0KRmFiaWVuDQoNCg0KPiAgIAl9DQo+ICAgCWlmIChpID09IFBPTExfUlNU X01BWCkNCj4gICAJCWRldl9lcnIoYmRpc3AtPmRldiwgIlJlc2V0IHRpbWVvdXRcbiIpOw==