From patchwork Fri Feb 16 16:01:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karina Yankevich X-Patchwork-Id: 13560272 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 53CFC28E23; Fri, 16 Feb 2024 16:01:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.154.21.10 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708099298; cv=none; b=oabcs3+7j2YpijA7+xku2B2VxsSRT/t6Iu4GXWcWLcyv2yRsSqotD9XCZKOg0JRwwwHYMmmdsuu8v5GJkvkmhoOnqi8LIXDnSJJOrfod5Eq/LOhgNdH8aYG9zZSqrNm7uyMrACJeuLaqzJ9ctO+0MT1WIvRf0kfK083o/NRuBvM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708099298; c=relaxed/simple; bh=DV0cf4a5CP+++OA4yCCHPN8FrX65afzSkNcxaEoEVQE=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=g/8hKYUm47mXaMrkakQFkkR74rXxVBNQJuOFv1/2QuVA0jSKo9RkKUQQaUqOCxLsGt0Z6uuKeo7GTshdBohwU5FJdgLav6dObCHmNrk9EhCKiZvl2nDWix+mHa6qRzmPCobKEFT9HE6JlYI6LV6QUZd9KBkkHMj9o1axyFZQ0eg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=omp.ru; spf=pass smtp.mailfrom=omp.ru; arc=none smtp.client-ip=90.154.21.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=omp.ru Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=omp.ru Received: from spb1wst022.omp.ru (109.73.39.18) 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; Fri, 16 Feb 2024 19:01:24 +0300 From: Karina Yankevich To: Michael Krufky CC: Karina Yankevich , Mauro Carvalho Chehab , , , Sergey Shtylyov , Subject: [PATCH] [media] tda18271: add missing result checking of tda18271_lookup_map() Date: Fri, 16 Feb 2024 19:01:10 +0300 Message-ID: <20240216160110.2735117-1-k.yankevich@omp.ru> X-Mailer: git-send-email 2.25.1 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: 02/16/2024 15:45:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 0 X-KSE-AntiSpam-Info: Lua profiles 183509 [Feb 16 2024] X-KSE-AntiSpam-Info: Version: 6.1.0.3 X-KSE-AntiSpam-Info: Envelope from: k.yankevich@omp.ru X-KSE-AntiSpam-Info: LuaCore: 7 0.3.7 6d6bf5bd8eea7373134f756a2fd73e9456bb7d1a X-KSE-AntiSpam-Info: {rep_avail} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: omp.ru:7.1.1;127.0.0.199:7.1.2;109.73.39.18:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;spb1wst022.omp.ru:7.1.1 X-KSE-AntiSpam-Info: ApMailHostAddress: 109.73.39.18 X-KSE-AntiSpam-Info: Rate: 0 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: 02/16/2024 15:51:00 X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 2/16/2024 3:14:00 PM X-KSE-Attachment-Filter-Triggered-Rules: Clean X-KSE-Attachment-Filter-Triggered-Filters: Clean X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit tda18271_lookup_map() may return negative error code, but tda18271c2_rf_tracking_filters_correction() doesn't check it as the other callers. Found by Linux Verification Center (linuxtesting.org) with the Svace static analysis tool. Signed-off-by: Karina Yankevich --- drivers/media/tuners/tda18271-fe.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/tuners/tda18271-fe.c b/drivers/media/tuners/tda18271-fe.c index f0371d004b36..ff5b22134414 100644 --- a/drivers/media/tuners/tda18271-fe.c +++ b/drivers/media/tuners/tda18271-fe.c @@ -279,7 +279,9 @@ static int tda18271c2_rf_tracking_filters_correction(struct dvb_frontend *fe, if (approx > 255) approx = 255; - tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt); + ret = tda18271_lookup_map(fe, RF_CAL_DC_OVER_DT, &freq, &dc_over_dt); + if (tda_fail(ret)) + goto fail; /* calculate temperature compensation */ rfcal_comp = dc_over_dt * (s32)(tm_current - priv->tm_rfcal) / 1000;