From patchwork Mon Mar 1 16:10:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 389936 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E562C433E6 for ; Mon, 1 Mar 2021 17:35:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F13EE650AC for ; Mon, 1 Mar 2021 17:35:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237922AbhCARci (ORCPT ); Mon, 1 Mar 2021 12:32:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:48854 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238413AbhCAR0t (ORCPT ); Mon, 1 Mar 2021 12:26:49 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 40C8D65084; Mon, 1 Mar 2021 16:50:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614617454; bh=WKgHO+1yfE8Ozk+2fuc9rhDhEjR2FGxWetxkSwRtA4g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NVhIxxmFmzAatsbp7gdaJBGucHrppqYUS07brPEcrU2aFkVK1cNWLzpbhigHRgY+/ 7YdqIx9VusRbIeSpAYzcj46P6cVQRuAeC1agnMEtZHyqCaX2Mn8yh2/9sQedOFYlKZ wuEwHtB72TzLBBkQvWl3UY1nvvWhAtc30Pph7Rpc= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jacopo Mondi , Sakari Ailus , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.4 080/340] media: i2c: ov5670: Fix PIXEL_RATE minimum value Date: Mon, 1 Mar 2021 17:10:24 +0100 Message-Id: <20210301161052.260902097@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161048.294656001@linuxfoundation.org> References: <20210301161048.294656001@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jacopo Mondi [ Upstream commit dc1eb7c9c290cba52937c9a224b22a400bb0ffd7 ] The driver currently reports a single supported value for V4L2_CID_PIXEL_RATE and initializes the control's minimum value to 0, which is very risky, as userspace might accidentally use it as divider when calculating the time duration of a line. Fix this by using as minimum the only supported value when registering the control. Fixes: 5de35c9b8dcd1 ("media: i2c: Add Omnivision OV5670 5M sensor support") Signed-off-by: Jacopo Mondi Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/i2c/ov5670.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/i2c/ov5670.c b/drivers/media/i2c/ov5670.c index 041fcbb4eebdf..79e608dba4b6d 100644 --- a/drivers/media/i2c/ov5670.c +++ b/drivers/media/i2c/ov5670.c @@ -2081,7 +2081,8 @@ static int ov5670_init_controls(struct ov5670 *ov5670) /* By default, V4L2_CID_PIXEL_RATE is read only */ ov5670->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops, - V4L2_CID_PIXEL_RATE, 0, + V4L2_CID_PIXEL_RATE, + link_freq_configs[0].pixel_rate, link_freq_configs[0].pixel_rate, 1, link_freq_configs[0].pixel_rate);