From patchwork Tue Apr 16 11:45:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Smirnov X-Patchwork-Id: 100921 Received: from ny.mirrors.kernel.org ([147.75.199.223]) by linuxtv.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1rwhGE-0001yZ-01 for patchwork@linuxtv.org; Tue, 16 Apr 2024 11:46:03 +0000 Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id CB8771C21620 for ; Tue, 16 Apr 2024 11:46:00 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 44834129A9E; Tue, 16 Apr 2024 11:45:56 +0000 (UTC) X-Original-To: linux-media@vger.kernel.org Received: from mx01.omp.ru (mx01.omp.ru [90.154.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3769E129A73; 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dmarc=none (p=none dis=none) header.from=omp.ru Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=omp.ru Received: from msk1wst434n.omp.ru (81.22.207.138) by msexch01.omp.ru (10.188.4.12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1258.12; Tue, 16 Apr 2024 14:45:37 +0300 From: Roman Smirnov To: Michael Krufky , Mauro Carvalho Chehab , Jia-Ju Bai , Hans Verkuil CC: Roman Smirnov , , , Sergey Shtylyov , Subject: [PATCH 1/3] media: tuners: tda18271: fix error code handling in tda18271_attach() Date: Tue, 16 Apr 2024 14:45:07 +0300 Message-ID: <20240416114509.198069-1-r.smirnov@omp.ru> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: msexch01.omp.ru (10.188.4.12) To msexch01.omp.ru (10.188.4.12) X-KSE-ServerInfo: msexch01.omp.ru, 9 X-KSE-AntiSpam-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 6.1.0, Database issued on: 04/16/2024 11:28:46 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 19 X-KSE-AntiSpam-Info: Lua profiles 184736 [Apr 16 2024] X-KSE-AntiSpam-Info: Version: 6.1.0.4 X-KSE-AntiSpam-Info: Envelope from: r.smirnov@omp.ru X-KSE-AntiSpam-Info: LuaCore: 17 0.3.17 f2153f38d75b12894d9cf445f96cd15c9ef63a9d X-KSE-AntiSpam-Info: {rep_avail} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: {SMTP from is not routable} X-KSE-AntiSpam-Info: {Found in DNSBL: 81.22.207.138 in (user) b.barracudacentral.org} X-KSE-AntiSpam-Info: msk1wst434n.omp.ru:7.1.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;127.0.0.199:7.1.2;omp.ru:7.1.1;81.22.207.138:7.1.2 X-KSE-AntiSpam-Info: ApMailHostAddress: 81.22.207.138 X-KSE-AntiSpam-Info: {DNS response errors} X-KSE-AntiSpam-Info: Rate: 19 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-AntiSpam-Info: Auth:dmarc=temperror header.from=omp.ru;spf=temperror smtp.mailfrom=omp.ru;dkim=none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Heuristic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 04/16/2024 11:34:00 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 4/16/2024 8:38:00 AM X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit X-LSpam-Score: -2.5 (--) X-LSpam-Report: No, score=-2.5 required=5.0 tests=ARC_SIGNED=0.001,ARC_VALID=-0.1,BAYES_00=-1.9,DMARC_MISSING=0.001,HEADER_FROM_DIFFERENT_DOMAINS=0.5,MAILING_LIST_MULTI=-1,RCVD_IN_DNSWL_NONE=-0.0001,SPF_HELO_NONE=0.001,SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no tda18271_attach() uses the hybrid_tuner_request_state() macro. It may return the error code -ENOMEM, but the function handle the value 0 instead. Found by Linux Verification Center (linuxtesting.org) with Svace. Fixes: b9302fa7ed97 ("media: tuners: fix error return code of hybrid_tuner_request_state()") Signed-off-by: Roman Smirnov Reviewed-by: Sergey Shtylyov --- drivers/media/tuners/tda18271-fe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/tuners/tda18271-fe.c b/drivers/media/tuners/tda18271-fe.c index a7e721baaa99..23432210f06a 100644 --- a/drivers/media/tuners/tda18271-fe.c +++ b/drivers/media/tuners/tda18271-fe.c @@ -1255,7 +1255,7 @@ struct dvb_frontend *tda18271_attach(struct dvb_frontend *fe, u8 addr, hybrid_tuner_instance_list, i2c, addr, "tda18271"); switch (instance) { - case 0: + case -ENOMEM: goto fail; case 1: /* new tuner instance */ From patchwork Tue Apr 16 11:45:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Smirnov X-Patchwork-Id: 100922 Received: from ny.mirrors.kernel.org ([147.75.199.223]) by linuxtv.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1rwhGR-00020Z-33 for patchwork@linuxtv.org; 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It may return the error code -ENOMEM, but the function handle the value 0 instead. Found by Linux Verification Center (linuxtesting.org) with Svace. Fixes: b9302fa7ed97 ("media: tuners: fix error return code of hybrid_tuner_request_state()") Signed-off-by: Roman Smirnov Reviewed-by: Sergey Shtylyov --- drivers/media/tuners/xc5000.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/tuners/xc5000.c b/drivers/media/tuners/xc5000.c index 2182e5b7b606..6e47edee8ac3 100644 --- a/drivers/media/tuners/xc5000.c +++ b/drivers/media/tuners/xc5000.c @@ -1379,7 +1379,7 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, hybrid_tuner_instance_list, i2c, cfg->i2c_address, "xc5000"); switch (instance) { - case 0: + case -ENOMEM: goto fail; case 1: /* new tuner instance */ From patchwork Tue Apr 16 11:45:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roman Smirnov X-Patchwork-Id: 100923 Received: from sy.mirrors.kernel.org ([147.75.48.161]) by linuxtv.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1rwhGi-00023V-08 for patchwork@linuxtv.org; 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It may return the error code -ENOMEM, but the function handle the value 0 instead. Found by Linux Verification Center (linuxtesting.org) with Svace. Fixes: b9302fa7ed97 ("media: tuners: fix error return code of hybrid_tuner_request_state()") Signed-off-by: Roman Smirnov Reviewed-by: Sergey Shtylyov --- drivers/media/tuners/tuner-simple.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/tuners/tuner-simple.c b/drivers/media/tuners/tuner-simple.c index 8fb186b25d6a..713ce2455910 100644 --- a/drivers/media/tuners/tuner-simple.c +++ b/drivers/media/tuners/tuner-simple.c @@ -1089,7 +1089,7 @@ struct dvb_frontend *simple_tuner_attach(struct dvb_frontend *fe, i2c_adap, i2c_addr, "tuner-simple"); switch (instance) { - case 0: + case -ENOMEM: mutex_unlock(&tuner_simple_list_mutex); return NULL; case 1: