From patchwork Fri Oct 13 08:31:12 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans Verkuil X-Patchwork-Id: 13420422 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DA0E8CDB47E for ; Fri, 13 Oct 2023 08:31:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230033AbjJMIbS (ORCPT ); Fri, 13 Oct 2023 04:31:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38432 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229743AbjJMIbQ (ORCPT ); Fri, 13 Oct 2023 04:31:16 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3FF2791 for ; Fri, 13 Oct 2023 01:31:15 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98007C433C8 for ; Fri, 13 Oct 2023 08:31:14 +0000 (UTC) Message-ID: <8ee42f1f-e874-488e-bd26-5a17b579d66b@xs4all.nl> Date: Fri, 13 Oct 2023 10:31:12 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US, nl To: Linux Media Mailing List From: Hans Verkuil Subject: [PATCH] media: pci: cx18: if cx == NULL, then don't use it. 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Replace it with pr_err. Reported by smatch: drivers/media/pci/cx18/cx18-mailbox.c:834 cx18_vapi() error: we previously assumed 'cx' could be null (see line 833) Signed-off-by: Hans Verkuil --- drivers/media/pci/cx18/cx18-mailbox.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/pci/cx18/cx18-mailbox.c b/drivers/media/pci/cx18/cx18-mailbox.c index 3b283f3c6726..a6457c23d18c 100644 --- a/drivers/media/pci/cx18/cx18-mailbox.c +++ b/drivers/media/pci/cx18/cx18-mailbox.c @@ -831,7 +831,7 @@ int cx18_vapi(struct cx18 *cx, u32 cmd, int args, ...) int i; if (cx == NULL) { - CX18_ERR("cx == NULL (cmd=%x)\n", cmd); + pr_err("cx == NULL (cmd=%x)\n", cmd); return 0; } if (args > MAX_MB_ARGUMENTS) {