From patchwork Fri Mar 1 11:15:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksandr Burakov X-Patchwork-Id: 777282 Received: from mail.rosalinux.ru (mail.rosalinux.ru [195.19.76.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5ADAD20E6 for ; Fri, 1 Mar 2024 11:16:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.19.76.54 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709291776; cv=none; b=XfB7BPPg9I/8J96WCXVUXmllNcwHYCc61af7kWzSqU5du+ln4rd9K8utupDqIfIVwe6GZd0lGfn1VJQM7GvGH6p4onC4Hx/KK2ThL9ZyAqpR1LTAClYGBXywudVJiIq5aq86IPjWq/AeN3Ki2D/OuaxD4FfXbuMG323EEsm1u/4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709291776; c=relaxed/simple; bh=y3nmN2RvyV2X54OghQae43aLhN5ozvhftmOeITs8ftc=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=oTloYnxJyJ8yxFTcThP5Bb1avAyZVRbS/rcXtI4Kqqjq85zLj3EV+F7UmINduEeNc0LRQiRzgbbz9OAQmht71KBI/tGFuK+vw3r7R9O9ZxVNMd3zSu+ophN3PD7OYjovGSJd2wW06vMur1WVD462NkmmLdX2mJoF8WzUs+i+2P0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=rosalinux.ru; spf=pass smtp.mailfrom=rosalinux.ru; dkim=pass (2048-bit key) header.d=rosalinux.ru header.i=@rosalinux.ru header.b=Pf0ZLA1h; arc=none smtp.client-ip=195.19.76.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=rosalinux.ru Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rosalinux.ru Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=rosalinux.ru header.i=@rosalinux.ru header.b="Pf0ZLA1h" Received: from localhost (localhost [127.0.0.1]) by mail.rosalinux.ru (Postfix) with ESMTP id BCA00D998D03B; Fri, 1 Mar 2024 14:16:01 +0300 (MSK) Received: from mail.rosalinux.ru ([127.0.0.1]) by localhost (mail.rosalinux.ru [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id j67MNjgoA9H1; Fri, 1 Mar 2024 14:16:01 +0300 (MSK) Received: from localhost (localhost [127.0.0.1]) by mail.rosalinux.ru (Postfix) with ESMTP id 824D2D998D03D; Fri, 1 Mar 2024 14:16:01 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.10.3 mail.rosalinux.ru 824D2D998D03D DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=rosalinux.ru; s=1D4BB666-A0F1-11EB-A1A2-F53579C7F503; t=1709291761; bh=8truhmrQY76QOWlOKaFV9fkDp1Cndo5etDjhe6LwO3I=; h=From:To:Date:Message-Id:MIME-Version; b=Pf0ZLA1hV5Ep12Xp6g6QuAEoeV0DRTVAg779YOB8XF92G3KA1G7/vwv7TAsc7e9OJ 1Sif67cE8RuSBoQdLdTfcRWbv9zSiCmakxZNEhBId9eIfvTAcKZjSRWSJrvsLQn1OQ Fjtjec/HZjI1yOjFcmDopRpCyGmVtpJQzgMdDyhzyMy4viRbD2CwhNzbpsfVLzBak5 ehfEKTWwLOYUjDGK6yVvqhRWqJGw7Ddbs1nMHxEx5GMAPBpcNKH0//2IhufOizup92 C5uYxHQtjffUS29J4s9CF/YUNDkDRqR1Pa4UYfbgt4guCgQVFetvTwXS5Grnduq87b hfaZmClW0gRZg== X-Virus-Scanned: amavisd-new at rosalinux.ru Received: from mail.rosalinux.ru ([127.0.0.1]) by localhost (mail.rosalinux.ru [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id lsTaG2i_RY2K; Fri, 1 Mar 2024 14:16:01 +0300 (MSK) Received: from ubuntu.localdomain (unknown [144.206.93.23]) by mail.rosalinux.ru (Postfix) with ESMTPSA id 400B0D998D03B; Fri, 1 Mar 2024 14:16:00 +0300 (MSK) From: Aleksandr Burakov To: Mauro Carvalho Chehab Cc: Aleksandr Burakov , linux-media@vger.kernel.org, lvc-project@linuxtesting.org Subject: [PATCH] media: ngene: Add dvb_ca_en50221_init return value check Date: Fri, 1 Mar 2024 14:15:53 +0300 Message-Id: <20240301111553.23995-1-a.burakov@rosalinux.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 The return value of dvb_ca_en50221_init() is not checked here that may cause undefined behavior in case of nonzero value return. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 25aee3debe04 ("[media] Rename media/dvb as media/pci") Signed-off-by: Aleksandr Burakov --- drivers/media/pci/ngene/ngene-core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c index 7481f553f959..24ec576dc3bf 100644 --- a/drivers/media/pci/ngene/ngene-core.c +++ b/drivers/media/pci/ngene/ngene-core.c @@ -1488,7 +1488,9 @@ static int init_channel(struct ngene_channel *chan) } if (dev->ci.en && (io & NGENE_IO_TSOUT)) { - dvb_ca_en50221_init(adapter, dev->ci.en, 0, 1); + ret = dvb_ca_en50221_init(adapter, dev->ci.en, 0, 1); + if (ret != 0) + goto err; set_transfer(chan, 1); chan->dev->channel[2].DataFormatFlags = DF_SWAP32; set_transfer(&chan->dev->channel[2], 1);